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Technical 4 link on '51 Chevy

Discussion in 'The Hokey Ass Message Board' started by StefanS, Feb 13, 2020.

  1. StefanS
    Joined: Oct 7, 2013
    Posts: 1,022

    from Maryland

    So I finally have a garage and I'm getting ready to do this 4 link (it's only been a year or so). I've read I think every thread on this site about 4 links, and I think they all say something different but I havent found a clear cut answer to anything I need to know. Keep in mind this is going to be on a daily driver in an area surrounded by "mountains" with a ton of sharp curves and heavy traffic. Alright, so on a '49 to '54 Chevy car with an s10 rear axle, who's done one and found the angle for the upper arms that works best? I'm gonna try my hardest to get the instant center right at about the transmission (although I have no idea how I'm gonna be able to accurately find that point) unless theres a better point for it to be. The main questions are what angle inward should I mount the upper bars (I've read everything from 30° to 45°), is the separation of the ends at the axle supposed to be 25% of the overall tire height, are 1" diameter bars (22.25" long lowers) large enough for a car with a 235/t5 and last but not least, are 1.25 x 1.25 poly bushings good for my driving requirements? Sorry to be so long winded but I have pretty much one chance to get this right, since if it's wrong I could crash and...well, you know

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