B&M Shift Improver Kit Automatic Transmission Kit | 4wheelparts.com
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    5. B&M Shift Improver Kit Automatic Transmission Kit

    B&M Shift Improver Kit Automatic Transmission Kit

    B&M
    B&M Shift Improver Kit Automatic Transmission Kit
    ##Sku-section1 ends2# 19:10:318##

    Customer Reviews

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    Question & Answers

    4 Answered questions

    Q: im building a 4wheeler. which shift kit would be best to fit my TH-400 with.. rock crawling and mudding... Answer this question

    A: Hi James The shift improver kit will firm up the shifts and help the trans live longer and has nice street manners. if this is just a toy i would recommend a full manual valve body that you have to shift for each gear but you constantly shift it. there is no automatic function any more . Thank You

    Answered by Stevie on 03/24/2014

    Q: How do I install this? Is It hard for a normal diy mechanic? I do most of the work on my truck, including but not limited to, trans service. Answer this question

    A: Hello jpayne, Thank you for the question. Here is a direct link to the installation instructions http://www.bmracing.com/bmnew/pdf/70360.pdf It's not that hard to install.

    Answered by RK on 03/14/2014

    Q: my transmission is a GM ( THM-4L80E ) which kit will work ? Its a1989 4 wheel pick-up Answer this question

    A: Thank you for your question. No the B&M GM Turbo 400 Shift Improver Kit will not work with your 4L80E transmission

    Answered by JiD on 02/12/2014

    Q: I have a 1989 4 wheel 2500 chevy will any of your shift kits work Answer this question

    A: Hi Jeff I Will need to Know what transmission your truck has ion it? Thank You

    Answered by Stevie on 02/11/2014