91xjtim said:
My 91 is starting to sag a lil these days. Especially when I tow anything. The leafs seem quite flat. What can I do? Replace them? Where can I pick up a set? TIA BTW it is stock.
The springs may seem quite flat because they are designed to be flat. Even new ones.
You cannot eye-ball XJ leaf springs for sag. You must measure. Measure from the center of the wheel hub or cap straight up to the bottom edge of the flare. The accepted baseline dimension for "stock" height is 17.0" in the rear (17.5" in front).
If your vehicle has actually sagged and all you want or need is to restore it to stock height, IMHO the cheapest route is a home-brew AAL. Get a pair of XJ leaf springs from a junkyard. Take them apart. Cut the eyes off the end just before they start to loop up to form the eyes.
You now have AALs. Now open up your existing springs and install these new leaves directly beneath the existing main leaf -- which you can leave in the vehicle. You will need new center pins (available at local spring shops, or through NAPA), and new clips to keep the leaves aligned.
I did this on an '88 recently. It was sagged about 1/2" below stock. When I had everything back together I was at 1" higher than stock. Ride was firmer than before, but very comfortable.
If you can't find the parts locally. contact Superior Spring in Hamden, CT at 203-248-6385.
Center pins are 5/16", part # CB516400 ($0.50 each, including nut)
Rebound clips are 2-1/2" wide, part # HC-11 ($1.33 each)