MCfan Posted September 7, 2015 Share Posted September 7, 2015 When I rebuilt the front suspension of my '70 SS with Moog stock replacement components last summer, I ran out of time to install the new Moog #5379 rear coil springs I purchased at the same time. Since I'm not likely to get the rear suspension rebuilt this summer, I decided to go ahead and install the new rear springs one evening last week. As most would know, this is a pretty simple and quick project that offers immediate and lasting results. I am very pleased to have a better attitude on the SS, as well as, a bit firmer ride and cornering - wish I'd done it sooner! As usual, I created a brief photo journal of the project in case it might help or inspire another novice like myself: Installing rear coil springs Here are the before and after attitude shots plus a couple of photos from the project. 1 Quote Link to comment Share on other sites More sharing options...
LS5 Posted September 7, 2015 Share Posted September 7, 2015 Looks good Dennis, are those variable rated springs from Moog ? Darren. Quote Link to comment Share on other sites More sharing options...
cudax Posted September 7, 2015 Share Posted September 7, 2015 Looks good Dennis, excellent job! Quote Link to comment Share on other sites More sharing options...
MCfan Posted September 7, 2015 Author Share Posted September 7, 2015 Looks good Dennis, are those variable rated springs from Moog ? Darren. I don't believe they are variable rate springs, Darren. Here are the specs that are listed on the Moog website: End type (1 & 2) = pig tail Inside diameter = 5.570" Bar diameter = .562" Install height = 8.50" Load = 760 Spring rate = 122 Free height = 14.75" Their application table for this spring lists a ton of '70s and '80s GM models so it is a fairly universal replacement spring. Interestingly, the only review on the Jegs site for this spring was from a guy (not me) who also put them on a '70 Monte Carlo SS and he rated it straight 5s ... we'll see. I like the black powder coating, but maybe that is fairly standard anymore. I paid $47.99 for the pair last summer ... now they're up to $56.99 at Jegs. Quote Link to comment Share on other sites More sharing options...
John S Posted September 7, 2015 Share Posted September 7, 2015 I put those same springs in my 70 with the same results. They are a good product. John S Quote Link to comment Share on other sites More sharing options...
footballubet Posted September 7, 2015 Share Posted September 7, 2015 Got a nice stance now. Amazing what a set of springs can do. Quote Link to comment Share on other sites More sharing options...
Sam (Bones) Posted September 7, 2015 Share Posted September 7, 2015 Thank you for documenting it Quote Link to comment Share on other sites More sharing options...
Joker_USAF Posted September 18, 2015 Share Posted September 18, 2015 Just ordered the springs. The photo journal made it look too easy not to try it. Thanks for documenting Dennis! Quote Link to comment Share on other sites More sharing options...
cny first gen 71 Posted September 19, 2015 Share Posted September 19, 2015 I put the moog variable rate springs in mine am very happy with it. Those old springs were definitely shot for sure. Quote Link to comment Share on other sites More sharing options...
MCfan Posted September 19, 2015 Author Share Posted September 19, 2015 Just ordered the springs. The photo journal made it look too easy not to try it. Thanks for documenting Dennis! I'm glad the project photo journal was some inspiration for you, Rob. It is an easy and straight forward project, but it also has an inherent safety risk since the body must be securely supported while the real axle is free to move down and back up to replace the springs. Be sure you have adequate supports under the frame since you will be working partially under a suspended car body. Enjoy the project and stay safe. Quote Link to comment Share on other sites More sharing options...
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