QA1 Rear Trailing Arm - Need a measurement
 

Hey all, I'm a longtime member that is finally getting around to rebuilding 3 Blazers I have had for 20+ years. Haven't been on for years! I am looking to use the QA1 trailing arm rear suspension to convert over to 2wd. I know the 4x frames are different from the 2x frames that kick out to catch the coils.

Looking at the frame dimensions that have been posted on this site for both the 2x and 4x Blazer frames, I believe the part of the frame where the coils/panhard bar actually mounts on the QA1 kit are the same width, 2x vs 4x. Would anyone with the QA1 rear kit installed be able to measure the frame width (outside to outside) where the coil mounts go? If it's the same, I will just lop off their c notch right before it kicks out and weld in my own notch. Also, it doesn't have to be on a blazer, any truck 63-72 should be the same.

I'll post up my Blazers soon and officially re-introduce myself on another post!

Thanks,
Chad

Re: QA1 Rear Trailing Arm - Need a measurement
 

The frame is 34" wide at the point where these brackets mount. The leaf spring axles have the spring perch on the top of the axle so you'll need to install the truck arm brackets on the bottom side of the axle tubes.

Re: QA1 Rear Trailing Arm - Need a measurement
 

Thanks Damien! That’s the info I needed.

Chad