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B&M Shift improver

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by devilsquid, May 6, 2004.

  1. devilsquid

    devilsquid Registered Member

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    Not sure who else out there has installed this but I put one in my 700r4 and it does make a big difference in the tranny's performance. /forums/images/graemlins/laugh.gif
    Although, putting the valve body back in by myself was a pain in the a$$.....

    PJ
     
  2. TorkDSR

    TorkDSR 1/2 ton status

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    i think that the hardest part is getting the gasket off the seperator plate /forums/images/graemlins/thumb.gif
     
  3. devilsquid

    devilsquid Registered Member

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    For the most part the gasket came off pretty easy except in a few spots. I used a peice of 26 guage sheet metal that I ground down to scrape it off. /forums/images/graemlins/cool.gif
     
  4. Z3PR

    Z3PR Banned

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    Never put one in a 700r4, but installed a few in TH350's. Does the one for the 700r4 have 3 options ??? I always went with option 3, and you could feel the difference with them.
     
  5. devilsquid

    devilsquid Registered Member

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    no....just 2, street/strip or Heavy duty. The street/strip option replaces the accumulator springs with spacers for much harder shifts. I went with the Heavy Duty and the shifting is much firmer than it was. Big difference.
     
  6. TorkDSR

    TorkDSR 1/2 ton status

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    i did the street strip cause my springs were broken... i haven't noticed the difference i was looking for, but the firm shift may be absorbed in the 42's
     

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