I'm going with Allstar weight jacks only in the rear and was wondering what springs I should go with. Length, LB, brand? Im running moog 5662 springs up front with KYB GR2 shocks/struts.


My desired ride height is 2"-3" lower than stock. The car will only see street for now. Next year I will autocross, but at that time I will buy appropriate springs for autox.

Also this kit is all plug and play and doesn't require any welding/cutting right?

http://pitstopusa.com/i-5066715-alls...uster-nut.html

Thanks!

 

I am not sure why you think these are plug and play? These are circle track parts.

It says they use a 5" diameter spring. Which means the adjuster will not fit in the spring locator ridge on your differential like the Ground Control weight jacks. These will need to be welded on. For this reason it would be impossible to estimate required spring length until you get them installed.

 

I ran them for a little bit before I went to coilovers. For the 250lb/in springs I wanted to run I had to use 8" tall springs. I still have a pair of 250 and a pair of 300lb/in springs, but I don't think they'll work well with stock front springs. I could see some 10" long 150lb/in springs working well though.

As for the install it wasn't bad, I just put 3 or 4 good sized tack welds around the adjuster to hold it to the rear end. As for street use, I'm not sure I'd suggest it, the threads are uncoated and unpainted, any prolonged exposure to water and they'll probably rust up and seize. I painted mine as best I could, but never ran them long enough to see what would happen.