Shift Improver Kit For 65-87 TH400 Transmission
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B & M Shift Improver Kit For 65-87 TH400 Transmission

Part No. 20260 Warranty Details  
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The B&M Shift Improver Kit the easiest way to get the performance you've always wanted out of your automatic transmission, two modes to select from: Heavy Duty, or Street/Strip. It's our least expensive and simplest to install kit.

Product Features:
  • Provides Crisp Shifts
  • On Any Stock Automatic Transmission
  • Eliminates Soft and Sluggish Shift
  • Eliminates Shift Overlap
  • Eliminate Clutch and Band Wear
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2 Questions | 2 Answers
Displaying questions 1-2
  • Q:

    does this part fit th350 transmissions
    Asked on 9/2/2011 by 454chris from laredo tx

    1 answer



      No, this part is compatible for Transmission Type: TH400, TH375 and M40.

      Answered on 9/3/2011 by Aaron from AAP
  • Q:

    I have an 87 Cutlass 442....The trans up shifts very quickly thru each of the gears when the engine gets hot....Will this product return it to normal ???
    Asked on 3/30/2011 by Lester Deets from 60440

    1 answer



      I would suggest taking your vehicle to a certified mechanic for a proper diagnosis before buying and having parts installed that may not solve or be the problem.

      Answered on 4/4/2011 by David the Dynamite Parts Guy from AAP
Displaying questions 1-2

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