Ways to Correct for Rear-End Sag in a Vehicle

Question:

I have a 1996 ford explorer, the rear end is sagging. Will the active suspension kit lift the rear back up to factory height, or do I need to either have a new leaf spring set built, or what? The airbags you have? Thank You

asked by: Stu

Expert Reply:

The suspension enhancement kits we offer for vehicles like your 1996 Ford Explorer, whether those kits are air bags, jounce springs or leaf spring helpers like the RoadActive # RAS3526, are intended for use with suspensions that are in good condition. A vehicle that is better than 20-years-old may simply need new leaf springs. The add-on kits will help mask that need to a degree but they are not a good substitute.

The specific cause for the rear-end sag affects the fix. If the truck sags without cargo in it and without being hitched to a trailer, then you need to have the suspension checked out. But if it sags when you have a trailer hitched then there may be more appropriate solutions such as a weight distribution system. These shift trailer tongue weight forward to the front axle and in doing so they correct some of the rear sag that would otherwise occur.

If you can tell me more about the conditions when the truck shows sag I can make the best recommendations. You might care to refer to the linked articles on suspension kits and weight distribution.

expert reply by: Adam R