I just put the entire QA1 trailing arm/coil over system on my 70 c10. I already had a trailing arm suspension so I can’t speak to converting from leaf springs but I can tell you if you do a little research the trailing arm suspension is far superior to the leaf springs. And I don’t believe the conversion is that difficult. Trailing arms or leaf springs, if you’re putting all new on to lower it you’re already tearing everything apart, may just be a couple extra steps to convert from the leaf springs.
I live about 20 mins from Summit Racing and almost always buy everything there. Obviously because they have just about everything, it’s almost impossible to beat there prices, and ease of return.
However, in this situation, I bought the entire QA1 set up, including front and rear sway bars, Wilwood drop spindles, and Wilwood disc brakes for all four corners from a guy out west named Richie Davis.
He was willing to work with me on the price and was just a great, easy guy to work with.
COMPLETE QA1 COILOVER KIT WITH SWAY BARS- $4175
He saved me well over $1000 on everything.
I know it’s not cheap by any means but too many times I haven’t done exactly what I wanted the first time, ended up having regrets and cost me more time and money in the long run making the changes to get exactly what a want.
QA1’s set up is awesome. Drives great and has a ton of adjustability. I would recommend giving Richie a call and see what he can do for you.
Richie Davis, 775 848-9860, www.goracin.com
Couple things to keep in mind if you do this. It is a bigger pain in the rear than the instructional videos lead you to believe. Mostly because there are a TON of frame rivets that need to be removed and if you intend on setting up your suspension on the lowest setting, as I did, you’ll need to reroute your exhaust and tuck it up into the frame. Which often means modifying or replacing both the transmission cross member and trailing arm crossmember. But if you have a leaf spring set up you’re going to need to get a trailing arm cross member anyways.
I had about a total of 80 body rivets I had to remove and they can wear you out.
Again, it’s a big job but the average guy can do it, and I am definitely just the average guy. Just be prepared for how much is involved. If you have a lift, which I don’t, it will definitely make the job easier. And I do have pretty good quality tools, but they’re not all professional level. Like my air hammer for instance, the hammer itself is professional grade, Matco, but my compressor is a little under powered for running it as efficiently as it should. Maybe your setup is better than mine and will make things a little easier for you.
If you need the crossmembers check out www.tinworksfabrication.com
. Super quality work and they are 3 piece units. Make them easy to install and much easier to remove if you ever need to and their prices are very reasonable for other comparable quality crossmembers I looked into.
Trust me, I did a lot of research, homework, and planning before I started this project. This set up and these 2 companies I dealt with were by far my best options for what I wanted.
Sorry for the super long post, just wanted to share my experience and what I learned doing this. The research itself can be very time consuming and I always appreciate someone sharing what they’ve learned if they’ve already put all the time and energy into it.