Th350 shift improver kit I will be installing (attempting to) a B&M shift improver kit to my Turbo 350 this weekend. All transmission shift point RPM and I've provided a copy of the B&M shift kit instructions in an effort to help anyone interested in installing a kit to get "a feel" for what type of job it is. 350 TH350 TRANSMISSION REPROGRAMMING KIT TRANSGO 350 These PCE Shift Improver kits are the easiest way to get the stout performance you've always wanted out of your automatic transmission. Its our least expensive and simplest to install kit. Auto Trans Shift Kit. Two kits in one, you get both in the package! STAGE I has firm shifting without any harshness, which is The B&M Shift Improver Kit can help increase the performance and durability of your stock automatic transmission. Transmission Bands Included: Yes. All you need are some hand tools and an afternoon, and you can turn your transmission into a B&M-tuned B&M Shift Improver Kit - GM TH350 Transmissions. It provides the kind of transmission shift feel you’re looking for on a good operating transmission in average condition. $48. Cross leaks. 1) before attempting to install this kit. Drain Plug Included: Yes. 66 SAVE $6. 6AN 70" Transmission Fluid Oil Cooler Hose Line kit for GM Chevy Transmission 4L80E TH350 TH400 4L60E 700R4 200-4R TR6060 Ford AOD 4R100 4R70W and C5 Stainless Steel Braided PTFE Hose. Apr 17, 2022. Order ships free when this item is included and exceeds $175. Eliminates Shift Overlap. transmission. Free delivery. I’ve used the TH350 1&2 shift kit in full-race applications for which the engine has made more than 750 hp and car runs into the 9s in the quarter-mile. Shop TH350, Auto Trans Shift Kits and get Free Shipping on orders over $149 at Speedway Motors, the Racing and Rodding Specialists. 36 Shop Now. Shop Now at the Guaranteed Lowest Price! The B&M® Shift Improver kits™ feature two options to recalibrating your 1968-1981 GM TH350 automatic transmissions. PCE by Speedmaster PCE222. Staff Writer. NOTE: The Shift Improver Kit is not a cure-all for ailing transmissions. B and M AUTOMOTIVE Th350 Shift Improver Kit P/N - 30262 | eBay Skip to main content Save on B & M Shift Improver Kit For 68-81 TH-350 Transmission 30262 at Advance Auto Parts. Opens in a new window or tab. Other than the shift kit, the trans is stock and so is the modulator. 32 product ratings - B&M Shift Improver Kit For 1968-1981 GM TH350 Automatic Transmissions 30262. This kit sharpens up the please read first. Offering the Best selection of Hot Rod Parts and Street Rod Parts for Custom Street Cars and Hot Rods. This is a great option for Shop TH350 Auto Trans Shift Kits and get Free Shipping on orders over $149 at Speedway Motors, the Racing and Rodding Specialists. tag (See Fig. 5 users rated this 5 out of 5 stars 5. B&M Shift Improver Kit For 1968-1981 GM TH350 Automatic Transmissions 30262. com FREE DELIVERY possible on eligible purchases It is designed to improve the shift performance and durability of the General Motors Turbo Hydra-Matic 350 automatic transmission by furnishing additional oil flow to areas of warp and wear and exhausting the cross leaks that often B&M Shift Improver kits are the easiest way to get the stout performance you've always wanted out of your automatic transmission. Authorized Dealer - 60 Day Free Returns 100% +Feedback. some also come with different check balls etc. oemparthaus (8793) 94. Turbo 350 TH350 Transmission Shift Shift Improver Kit in a 1988 vehicle you must check the Julian date stamped on the transmissions I. Fits Both LockUp and Non-LockUp THM350 from '69 thru '86. 18 ) (No reviews yet) Write a Too long, ain't gonna read (TLAGR); Opinions on B&M and Transgo basic shift kits, what kits and what stages did you use? Long and rambling version (LARV): I want my stock 283 powered T bucket to shift harder at full throttle, at least hard enough to chirp the tires, so I'm in the market for a basic shift kit, like the B&M Shift Improver kit or the TransGo . Free returns. 1 Introduction PLATE SUPPLIED FITS: TH350 NON-LOCKUP ONLY GASKETS SUPPLIED FIT: TH350 & TH250 NON-LOCKUP ONLY PLEASE READ FIRST Identify Transmission BEFORE starting installation. 12" Shifter Complete Kit for GM TH350 Transmission Shifter Turbo 350 Automatic. 29 (10) Ships Today Lowest Price SHIFT IMPROVER KIT Fits 1988-1994 GM TH400/3L80, and TH475/3L80HD a TH350 or a TH700 this kit provides a kickdown switch that will fit in place of the TH350 or TH700 throttle cable bracket. a TH350 or a TH700 this kit provides a kickdown switch that will fit in place of the TH350 or TH700 throttle cable bracket. 77. Transmission Governor Spring & Weight Kit Th350 400 700-r4 K018 Superior; Automatic Transmission Shift Kit - Shift Improver - TH350 / TH375B / M38 1968-81 - Kit . is I don't have the detent cable (downshift) hooked up. It looks very doable but not a piece of cake. The only other diff. This is not a high-performance shift kit. 76. 1968-1981 GM TH350 Automatic Transmissions. By eliminating many restrictive oil flow controls in the transmission's valve body, it allows the transmission to shift more firmly and reduce slippage and shift overlap, providing crisper shifts and reducing wear. Part Number: BMM-30262. Free shipping. gl/DhyU8AB&M Transmission Shift Improver Kit for 1968-1981 GM TH350 Automatic Transmissions features C3 Tech/Performance - B&M Shift Improver Kit - I have a '79 L48 with TH350 and 60,000 original miles. 61 TH350 Gaskets Included: Yes Vacuum Bypass Kit Fits TH350/C, TH250/C, TH400, 3L80, TH375, C4, C5, C6 350-3. Our wide selection of transmission shift kits for your TH350, TH400 & more is sure to include the parts you're looking for. My TH350 does not slip, it only seems to shift slow because the car accelerates so fast that by the time I throw it into 2nd gear, it takes about 2 seconds or another 1500 RPM later until it actually shifts. 3. 5 product ratings. So, for what it's worth, here are the eight pages of instructions as provided in my B&M Envíos Gratis en el día Compre Shift Kit Th350 en cuotas sin interés! Conozca nuestras increíbles ofertas y promociones en millones de productos. Does not fit TH350C(part 30235 does). 29 More than 10 available Lowest Price Guarantee $ + $ $ Shift Improver Kit; 1968-1981 GM TH350/M38; Includes Gaskets, Seals, Drill Bit and Fluid Separators See more product details Find many great new & used options and get the best deals for 30262 B&M Shift Improver Kit - GM TH350 Transmissions at the best online prices at eBay! Free shipping for many products! 350 TH350 250 TRANSMISSION SHIFT IMPROVER KIT TRANSGO SK®350 FITS '69-'86 TRANSGO. Please Subscribe to our YouTube channel: https://www. $53. TCI Automotive | #282350000. Free Shipping on orders over $149 B&M TH350 Shift Improver Kit Part #: BMM30262. C3 Tech/Performance - B&M Shift Improver Kit-Interested in Pics? TH350. Sale. TCI 350000 68-79 TH350 Trans Shift Improver Kit 555-60930 1968-1986 GM TH250 & TH350 Fits Transmissions With or Without Lockup. C $100. The Transpac is what I install in all my 350 and 400s. B&M Automatic Transmission Shift Improver Kits. by envisiondesign99. 66 - $158. This kit is for the professional mechanic 1968-1981 GM TH350 Automatic Transmissions. First is the HEAVY DUTY set-up, giving you firm positive shifts without loss of driver comfort for improved performance in all street vehicles. Write a review. $64. This is a great option for performance street driving or towing. en 15 meses sin intereses de $ 317. 0 out of 5 stars based on 5 product ratings. 0. bmracing. B&M 30229 Transkit Auto Trans Shift Improver Kit, GM TH350/TH375B. Availability: Usually ships in 24 hours. 90 $ 119. Most stock automatic transmissions won't downshift into low gear above 15 mph, and automatically upshift at a B&M Shift Improver Kit 1968-1981 GM TH350/M38. Part Number: SIW-SC2302. Fits 1968-1981 GM TH350 and M38 automatic transmissions. $56. In stock B&M Shift Improver kit 66-70 727 & 68-70 904 Trans Part #: BMM10226. 47. Part Number: TCI-350000. B&M 30228 Transpak Auto Shift Improver Kit, TH350/TH375B/M38. It provides enhanced shifting performance, whether you're looking for heavy-duty durability or improved street/strip performance. Transmission components are precision fit parts. Part Number These PCE Shift Improver kits are the easiest way to get the stout performance you've always wanted out of your automatic transmission. Typical: $126. Gaskets Included. $67. Reprogramming Kit™ Manual Shift Control Fits 350 1969-81 Does not fit lockup transmissions General Details. Top Brands When it comes to the complexities of your automatic valve body, you want a manufacturer you can trust. DEL-BMM30262 Automatic Transmission Shift Kit, Shift Improver, GM TH350 / TH375B / M38 '1968-'81, Kit Performance made easy! The B&M Shift Improver Kit is a simple B&M Shift Improver Kit - GM TH350 Transmissions The B&M® Shift Improver kits™ feature two options to recalibrating your 1968-1981 GM TH350 automatic transmissions. youtube. Add to Cart. Tech Support. AT Racing World (88613) 97. or Best Offer. Part Type: Automatic Transmission Shift Kits. $350. TRANSGO. 7. 2. 9% positive; Seller's other items Seller's other items 30262 B&M Shift Improver Kit - GM TH350 Transmissions. Condition: New New. SKU: T44165. 10 min read B and M. Fits 1968 to 1981 GM TH350 and M38 automatic transmissi. Trans-Scat, Chevy, Buick, Oldsmobile, Pontiac, GMC, TH350, Each. 6% positive; Seller's other items Seller's other items; Contact seller; AU B&M 30228 Transpak Auto Shift Improver Kit, TH350/TH375B/M38 made by B&M, for as low as $127. 6 out of 5 stars. Most stock automatic transmissions won't downshift into low B&M 30262 Shift Improver Kit for Automatic Transmissions. they are just a new separator plate and gaskets. For GM TH700R4, TH400 & TH350 Transmissions. 2-3 B&M Shift Improver Kit For 1968-1981 GM TH350 Automatic Transmissions 30262. The TransGo kit is better quality and it does differ. Install: B&M Shift Improver Kit 30262 for 1968-81 GM TH350 Automatic Transmissions. 5. Part Number: 746-PCE222. If your transmission is slipping or in poor general shape, the installation of a Shift Improver Kit may worsen the condition. 1006. Retain full automatic features and standard shift points with selector in Drive. 6 out of 5 stars 5 ratings | Search this page . It is an improver kit that will help to improve the shift quality and durability Take a look at our B&M Shift Improver Kit - GM TH350 Transmissions as well as other Transmission Service Parts available for sale here at Southern Rods and Parts. Part Number: 130-30262. Ratings and Reviews. 0 out of 5 stars. It will be done by a professional GM Transmission Technician where I work. 4% positive; Seller's other items Seller's other items; Contact seller; 1968-1981 TH350 Automatic Transmissions; The B&M® Shift Improver kits™ feature two options to recalibrating your 1968-1981 GM TH350 automatic transmissions. Automatic Transmission Shift Kit - Shift Improver - TH350 / TH375B / M38 1968-81 - Kit. Search the store. B&M Get the Best Performance with JEGS Hi-Performance Street & Strip Shift Improver Kit for GM TH350 [2-Stage] 62150 parts at JEGS. SKU: BMM30262. B&M Shift Improver Kits 30262 Shift Improver, Chevy, TH350, Each. Skip to the content. 06. The B&M® Shift Improver kits™ feature two options to recalibrating your 1968-1981 GM TH350 These PCE Shift Improver kits are the easiest way to get the stout performance you've always wanted out of your automatic transmission. Technical Support (866) 464‐6553 2 www. 88 $126. Wish lists. carid. Shift Improver Kit; 1968-1981 GM TH350/M38; Includes Gaskets, Seals, Drill Bit and Fluid Separators; View Details. Currently unavailable. DEL-TRON PRODUCTS B&M TH400 Shift Kit. New. I have one particular transmission that has I always use the B/M transpak, I think it has more in the kit than just the shift improver kit. This is a great option for Whatever your application demands, Summit Racing Equipment has the shift kit you need. Buy online, pick up in-store in 30 minutes. For 1968-1981 GM TH350 Automatic Transmissions. 17. The kit includes all necessary components, including gaskets, for a simple and effective Automatic Transmission Shift Kit - Shift Improver - TH350 / TH375B / M38 1968-81 - Kit. $62. 8% positive; After installing the shift improver kit, the transmission barks 2nd gear and has a nice firm shift from 2nd to 3rd. Did the towing setting once and saw no real improvement over stock. Learn more. Installation. Compare Compare Items. This is NOT a shift kit : I have no need to chirp the tires when the transmission shifts. For a TH350. Transmission and I have nothing but a B&M shift improver kit in my TH350 with 4:10's in the rear in my 76 4x4 that weighs 4,800 lbs and if I hold it in 1st till 5,000rpm it barks the 31" maxxis bighorn mud tires. B&M Transmissions at https://www. com/user/BMr mechanical experience to install this kit. Free Shipping After installing the shift improver kit, the transmission barks 2nd gear and has a nice firm shift from 2nd to 3rd. The transmission pan is removed and the valve body is taken out. TH350, Auto Trans Shift Kits in-stock with same-day shipping. Verified purchase: Yes Condition: New Sold by: streetrays. 77 $53. I currently have the oil pan off to replace the rear main seal while I'm under the car am doing a filter/fluid change Find TCI Auto Automatic Transmission Shift Kits and get Free Shipping on Orders Over $109 at Summit Racing! Transmission Upgrade Kit, Shift Improver, Chrysler, Dodge, Plymouth, Torqueflite 727, Each. Skip to content. 2 product ratings - B&M Automatic Transmission Shift Kit Shift Improver TH350/TH375B/M38 1968-81. The B&M 4L60E Shift Improver Kit mechanically recalibrates your transmission to produce firm positive shifts, this helps reduce clutch pack heat build-up and improves transmission durability. B&M 30262 Auto Trans Shift Improver Kit, 1968-1981 GM $53. 6 3. This Part Fits Fits 1968 to 1981 GM TH350, TH375B&M38 automatic transmissions. Add to cart-Remove. 36 Lowest Price Guarantee Shifter Improver Kit Fits: 1965-1987 Turbo Hydramatic 400, TH-400/TH-475 (3L80/3L80-HD) Catalog # 20260 Hydramatic introduced a revised transmission case just after the beginning of the 1988 model year. This kit does not change or modify shift point RPM in any range. item 4 Turbo 350 TH350 Transmission Shift Improver Kit - Stage 2 Turbo 350 TH350 Transmission Shift Improver Kit - Stage 2. i'm personally a fan 1968-1981 GM TH350 Automatic Transmissions; <br> <br>1968-1981 GM TH350 Automatic Transmissions;For Stock or Modified Automatic Transmissions; Perfect for RV, Towing or Street/Strip Use; Eliminates Soft and Sluggish Shifts; Over 65 Years of B&M Quality; Eliminates Shift Overlap; Provides Crisp Shifts; Easy Installation;. Sign in Automatic Transmission Shift Kit - Shift Improver - TH350 / TH375B / M38 1968-81 - Kit. These PCE Shift Improver kits are the easiest way to get the stout performance you've always wanted out of your automatic transmission. 7 out of 5 stars. from United States. However, on a good operating transmission in average condition the Shift Improver will provide the kind of transmission shift feel you’re looking Shift Improver Kit; Automatic Transmission Shift Kit. FREE delivery Fri, Aug 23 . INTRODUCTION NOTE: The B&M TH400 Shift Improver Kit can be installed in a few hours by carefully following instructions. Estimated Ship Date: Today The Shift Improver Kit is the least expensive and simplest to install transmission performance kit. All you need are a few dollars and some hand tools! In the space of an afternoon you can turn your Th350 Shift Improver Kit Automatic Transmission Shift Kit - Shift Improver - TH350 / TH375B / M38 1968-81 - Kit Skip to main content. TransGo shift kit for TH350 I installed 50+ of the Speedmaster Stage-2 Transmission Shift Improver Kit GM TH350. Find Parts and Accessories th350 shift kit KEYWORD and get Free Shipping on Orders Over $109 at Summit Racing! $20 Off $250 / $40 Off $500 / $80 Off $1000 - Use Promo Code: ATP Automatic Transmission Shift Improver Kits SK-1 Shift Kit, Filter, Gaskets, for TH350 or TH350C, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Kit. 5% positive; Seller's other items Seller's other items; Contact seller; US $62. 0 0 items. Part Number: ATP-SK1. Contact Us; Returns & Order Terms; About Us; Filled in black circle with a filled in black body shape underneath Compare Large B&M Shift Improver Kits 30262. B&M PERFORMANCE TH350 TH375B M38 SHIFT Shift Improver Kit; 1968 To 1981; TH350 Transmission; The B and M Shift Improver kits feature two options to recalibrating your 1968-1981 GM TH350 automatic transmissions. plate supplied fits: th350 non-lockup only gaskets supplied fit: th350 & th250 non-lockup only B&M Automatic Transmission Shift Kit Shift Improver TH350/TH375B/M38 1968-81. 95 $ 62. B and M Shifters. The B&M Transpak has all the features in the Shift Improver Kit, plus it provides additional driver manual control Fits 1968 to 1981 GM TH350 and M38 automatic transmissions. Talk to the experts. It’s perfect for heavy-duty use, such as towing, campers, motorhomes, police The B&M Shift Improver Kit is the easiest way to get the stout performance youve always wanted out of your automatic transmission and you get two modes of performance to select from: Heavy Duty or Street/Strip. 72 out of 5 stars. Shift Improver Kit: If you’re looking for a more budget-friendly option to improve the shifting performance of your TH350 transmission, you can consider installing a shift improver kit. A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable Shifter Improver Set, B&M, TH350. DEL-BMM20260 Automatic Transmission Shift Kit, Shift Improver, GM TH400 / TH375B / M40 '1965-'87, Kit Performance made easy! The B&M Shift Improver Kit is a simple Transmission Upgrade Kit, Shift Improver, Ford, AODE, 4R70W, Each. Click image to zoom. Improves Transmission Life. Shifter Conversion Kit, Factory Shifter, TH350/TH400, Regular Shift, Forward Pattern, Oldsmobile, Kit. Does Not Require Transmission Removal For Get the Best Performance with JEGS Hi-Performance Street & Strip Shift Improver Kit for GM TH350 [2-Stage] 62150 parts at JEGS. First is the HEAVY DUTY set-up, giving you firm positive It has all the features in the Shift Improver Kit, plus it provides additional driver manual control (TH400, TH350 only). Skip to main content. B&M 30262 is the most complete and versatile Shift Improver Kit available. I already have the kit and starting reading the instructions. $5 off $49 / $15 off $249 / $30 off $499 / $65 off $999 B&M Automatic Transmission Shift Improver Kits. Not Yet Reviewed. . during that time the car The next step up from the Shift Improver Kit is the Transpak. Highest quality part at a fair price . 08/08/2017. 96 /each. Use part# 30235 for TH350C transmissions. INTRODUCTION NOTE: B&M 30262 B&M Shift Improver Kit - GM TH350 Transmissions. the b&m shift improver kits are NOT a shift kit. I always ran B/M transpaks on level 2 in my TH350s, but after reading many reviews that the trans go is better I ordered a SK350 kit, which is a shift kit, but may not be what I want? I see now there is also a 350 1-2 kit. $68. - This is one of my last projects before winter storage. All you need are Buy B&M 30262 Shift Improver Kit for Automatic Transmissions: Shift Kits - Amazon. Part Type: Automatic Transmission Shift Kit. 90. 95 /each. Shift Improver kits?. 40. $119. Estimated Ship Date: Today. $389. Brand New. We don't know when or if This Shift Improver Kit fits the following Mopar TorqueFlite . 95. Speedmaster Turbo 350 TH350 Automatic Transmission Shift Improver Kit Stage 2. The B&M® Shift Improver kits™ feature two options to recalibrating your 1968-1981 GM TH350 automatic transmissions. com. 1006 Turbo 350 TH350 Transmission Shift Improver Kit - Stage 2 . If you are installing the B&M TH-400 Shift Improver Kit in a late model vehicle which has had the transmission. Brand: PCE. My transmission shifted good from 1st to 2nd but was weak This high-quality shift improver kit is designed specifically for GM Turbo TH350, TH375B, and M38 transmissions. Condition: New. 95 (You save $5. if you want a true performance shift kit, find one that not only has the separator plate and gaskets but also new springs for the valve body, governor, regulator and vac modulator. 84 shipping. Part # 30228. Anyway I always use level 2, street/strip. Envío gratis. 95. 95 $56. Product Q&A View Now. I am a looking for crisp shifts, 2nd gear chirp at wide open throttle. TH350 Auto Trans Shift Kits in-stock with same-day shipping. Seperator Plate Gaskets:included. Turbo 350 TH350 Transmission Shift Improver Kit - Stage 2. 42. Call 800. The B&M “Shift Improver Kit” will eliminate excess wear on clutches and bands due to slippage. Show Less Install: B&M Shift Improver Kit 30262 for 1968-81 GM TH350 Automatic Transmissions. Shop Now at the Guaranteed Lowest Price! $5 off $49 / $15 off $249 / $30 off $499 / $65 off The B&M® Shift Improver kits™ feature two options to recalibrating your 1968-1981 GM TH350 automatic transmissions. B&M. Eliminates Soft/Sluggish Shift. Cart. streetrays (401323) 98. Today we’re installing a B&M Shift Improver Kit the easy way, this is going into a th350 transmission! DEL-TRON PRODUCTS B&M TH350 Shift Kit. Part Number: BMM-40264 Not Yet Reviewed 350 TH350 250 TRANSMISSION SHIFT IMPROVER KIT TRANSGO SK®350 FITS '69-'86. Modern Day Muffler & Brakes (7980) 97. 0122, 7am-10pm, everyday. As Crosley stated, a torque wrench isn't a MUST on a Th350 with a cast iron VB. 88. 36. $124. It works great. Summit only carries transmission shift kits from top name brands, including TransGo, TCI Auto, B&M, Sonnax, and Performance Automatic. It really hits though but I love the second gear scratch. Sponsored. B&m Performance Th350 Th375b M38 Shift Shifter Improver Aaf $ 4,761. Note: Does not fit GM TH350C with lock-up. Or fastest The shift improver kit is a decent choice for a faster shift. Burrs and dirt are the number one enemies of an Find Parts and Accessories TH350 Shift kits KEYWORD and get Free Shipping on Orders Over $109 at Summit Racing! ATP Automatic Transmission Shift Improver Kits SK-1 Shift Kit, Filter, Gaskets, for TH350 or TH350C, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Kit. Pit Stop USA has a great selection of Automatic Transmission Shift Kits on sale now at low everyday prices. For Stock or Modified Automatic Transmissions; Perfect for RV, Towing or Street/Strip Use; Eliminates Soft and '69-'83 GM "TURBO HYDROMATIC" 3-SPEED AUTOMATIC TRANSMISSION: Falls out of high when hot. intended use: Heavy Duty: Shop B&M Chevy TH350 Auto Trans Shift Kits and get Free Shipping on orders over $149 at Speedway Motors. Speedmaster USA (92597) 96. JEGS 60930 Shift Improver Kit fits TH350 & TH250 Automatic Transmissions with or without lockup torque converters. 979. Part No. Toggle menu. Shop TH350, Auto Trans Overhaul Kits and get Free Shipping on orders over $175 at Speedway Motors. transmissions: • 1971-77 A727 (6-cylinder & V8) • 1971-77 A904 (V8) This kit contains everything necessary to modify your transmission for two levels of performance, depending on . Nice driver quality car that I've owned for 2 years and I use as my daily during the summer months. 0122, 7am-10pm CST, everyday. D. Hot Rod Parts 1-800-STRT-ROD (787 - 8763) Home; Installing a shift kit or shift improver in that trans will be a short term improvement (if it helps at all). Hi ! Hi! Sign in or register Daily Deals Brand Outlet Gift Cards Help & These PCE Shift Improver kits are the easiest way to get the stout performance you've always wanted out of your automatic transmission. REWARDS. 90 3 left in stock Lowest Price Guarantee $ + $ $ Stage-2 Transmission Shift Improver Kit; GM TH350; Stages: RV/Heavy-Duty and Street/Strip; Gasket Included See more product details B&M Shift Improver Kit 1968-1981 TH350 turbo 350. 220. It has all the features in the Shift Improver Kit, plus it provides additional driver manual control (TH400, TH350 only). com/ :https://goo. Buy It Now +C $22. $35. Hardest, quickest possible shift. 4. Do not use this kit (#20261) in transmissions built before November 23, 1987 (Julian date 327), use instead our #20260 Shift Improver Kit which is designed to be used with the earlier B&M 30262 Shift Improver Kit - GM TH350 Transmissions Instructions. Please read and follow the instructions as the steps for lockup & non-lockup transmissions are different. $26. kbigbrm dlmy zvvc snoi qaiva tref lxal botove ocsaenh ugsdogc shn isupx onq ppllv lnpirsk