looking to buy a bolt on 4 inch suspension lift for my 89 4runner, and have a couple of questions. each lift is for either 2.5" or 3.25" u-bolts. i'm assuming this is the distance across the top of the u-bolt, but does that mean that there are trucks out there with wider leaf springs?

are there any important differences between the pro comp, trailmaster, rough country or superlift ifs lifts? superlift and trailmaster and rough country have one piece drop brackets vs pro comp, but i know a lot of people are running the pro comp. looking for some first hand experience on this one.

If these are for a conventional u-bolt setup, then there are two different perch widths out there. The "narmal" ones are just a bit wider than the width of the springs (which are 2-3/8") and then there are the "wide" ones which have a rubber lined steel jacket wrapped around the leaf pack and the spring plate and u-bolts fit over that and that is about 3/4" wider.

thanks, roger...
that was exactly the type of info i was looking for!

I have seen both the new style superlift and old style trailmaster lifts in person. The older style trailmaster was not one solid drop bracket (used stock crossmembers). The superlift (newer style) uses one solid drop brakcet (not stock crossmembers). If you're buying new, I think all lifts are now one piece drops? If buying used, a one peice is definently preferable - its stronger and less likely to bend.

Check out the new post on ifs lifts.. should get interesting.

-Scerb