GM B-Body Forum, 77-79 Caprice/Impala Forum

Join Now If Your A 1977- 1979 Caprice or Impala owner or other GM B-Body owner!!!
Like us on Facebook https://www.facebook.com/BBodyForum?ref=hl
GM B-Body Forum, 77-79 Caprice/Impala Forum

A forum for all the owners and enthusiasts of General Motors B-Bodies from 1965-1996, but dedicated to the owners of 1977-1979 Impalas and Caprices. Join up now!


    1978 Bel Air 4dr sedan rear coil spring replacment.

    Share
    avatar
    78i6belair
    Junior Member
    Junior Member

    Posts : 42
    Join date : 2014-11-03
    Age : 31

    1978 Bel Air 4dr sedan rear coil spring replacment.

    Post  78i6belair on Thu Apr 27, 2017 7:06 am

    Hi there.

    It has come time to replace my rear coil springs in my 78 Bel Air sedan. This car has no A/C, straight 6 engine and occasionally tows a small dirt bike trailer.

    Lots of conflicting info out there but what would be a good rear coil spring pn# to use. I do believe my car was suffering the sagged out rear spring syndrome as the previous owner had installed coil over shocks to help aid in ride height.

    I'd like to replace them with something that's not super stiff but I would also like to remove the coil over assist shocks.

    What are my options?

    Thanks
    avatar
    Kit1078
    Auto Novice
    Auto Novice

    Posts : 54
    Join date : 2015-04-26
    Location : Northeast Ohio

    Re: 1978 Bel Air 4dr sedan rear coil spring replacment.

    Post  Kit1078 on Thu Apr 27, 2017 9:41 pm

    I usually use Moog Cargo Control rear coil springs, P/N: CC621
    it's a stock height spring that's a bit stiffer than the stock springs, and has a variable wind on the coils so that it won't sag as much as a stock spring under load. I didn't notice a difference in ride quality on my first car, but it had a polyurethane bushing kit and rode like a brick anyway.
    avatar
    78i6belair
    Junior Member
    Junior Member

    Posts : 42
    Join date : 2014-11-03
    Age : 31

    Re: 1978 Bel Air 4dr sedan rear coil spring replacment.

    Post  78i6belair on Fri Apr 28, 2017 7:25 am

    Hey thanks man.

    I'll run that part no# by my local parts supplier and hopefully they are available.

    I had 12 car batteries in my trunk for about a week before I took them to the scrap yard and I'm pretty sure this is what did in the factory rear coil springs lol.

    Car leans to the left when looking at it from the rear. Fender lip to ground measurements are the same on the
    front but the rear has a 1.25 inch difference.

      Current date/time is Tue Sep 19, 2017 6:35 pm