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  1. #1

    Default Way to adjust shift points on my '91?

    Huys guys, I've been meaning to post about this but I kept getting too lazy haha...

    Anyway, under normal acceleration in my truck, it will shift from 1-2 at about 12mph, from 2-3 at about 19-20mph, and from 3-O.D. at about 37. I can feel the power drop off when it shifts from 2-3 and from 3-O.D., because to me, it feels like its shifting too early.

    I'm fine with the 1-2 shift, but is there a way I could bump the 2-3 shift point to about 24 or 25 mph and the 3-O.D. to about 44 or 45 under normal acceleration (without just pressing the pedal harder lol), while still keeping the floored shift points to a max of about 4,500 RPM or somewhere around there?

    I've never really dealt with this before, so I'm clueless at this. Oh and while I'm at it, I'll ask this - the 1-2 shift is real tight/quick/firm (like it has a shift kit in it), while the 2-3 and 3-O.D. shifts are like normal. There's no stranges noises when it shifts, either. Should I be concerned about this? I hope it's nothing to worry about, because I like it!!

    Ideas? Thoughts? Suggestions? I'm drawin' a blank here...
    Last edited by bigburb; 12-15-2009 at 11:32 AM.
    Current truck: 1996 Ford 250, 7.3 Powerstroke diesel. Dana 60 SAS, stage 1 160cc injectors, T500 High Pressure Oil Pump, TS 6-position chip, full 4" exhaust, intake, 285 Falken Rocky Mountain AT's, boost/EGT/trans temp pillar gauges, etc...

  2. #2
    Sr. Engineer ahm1127's Avatar
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    Jan 2009
    Pennsylvania, United States


    B&M use to have a control box that wired into truck with a switch to choose your shift firmness. I had it on my 97 Yukon & it worked great. it was also cheap.
    Everyday I wake up is a great day! ;-)
    05' Chevy Suburban, 11' Ford Fiesta

  3. #3


    You can adjust your TV cable for a later firmer 2-3 and 3-4 shift but it may make the 1-2 too firm. Try it. Shorten the adjustment about 1/8" to start and see how it feels. The other way to do it is with a valve body kit.

    2004 SILVERADO 2500HD LS
    Pro Comp Leveling Kit
    285-75-16 Cooper ST All Terrains
    Pro Comp Programmer
    Bilstein Shocks
    Linux Bed Liner
    Tinted Windows

    Other rides:

    1967 Landcruiser <350 Chevy>
    1970 Camaro
    1990 Geo Metro Convertible
    2007 FJ Cruiser

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