[PapaBear]

Greetings y'all
I bought a 99 Durango 4x4 last year and my leaf springs are sagging BAD. I plan to restore my Durango and maybe do a small lift so my main question for this thread is:

Can the torsion bars go bad like the leaf springs?
Do I get new ones or is used ones ok?
If new ones, where the heck do I get them? (Just searched Google for the last two hours)

I LOVE this truck, it runs like a scolded dog but everything else around the drive train is in poor shape.

 

[MWeed]

What makes you think the rears are sagging? If it is because they aren't an even curve between the front hangar and the rear, they are supposed to look like that. The rear springs are actually S-shaped. You can order a set of chevy pu lowering shackles to replace the rear shackles on your D and get @ 3" of lift in the back. You can adjust the torsion bars by turning the adjusting screw that sits @ at the door frame area of the D, one turn = @ 1/4". Do this with front tires off of the ground, carrying no weight.

 

[dizzyD]

the bars will typically break before going bad (which can be 500k+ miles, or if you carry a dead moose on your hood for 100k miles)

 

[PapaBear]

What makes you think the rears are sagging? If it is because they aren't an even curve between the front hangar and the rear, they are supposed to look like that. The rear springs are actually S-shaped. You can order a set of chevy pu lowering shackles to replace the rear shackles on your D and get @ 3" of lift in the back. You can adjust the torsion bars by turning the adjusting screw that sits @ at the door frame area of the D, one turn = @ 1/4". Do this with front tires off of the ground, carrying no weight.

Visually the rear end sits 2+ inches lower than the front, the rubber stop is awefully close to the frame, and with just four of my kids in the back the rubber stop bottoms out on nearly every bump.

@dizzyD
Thank you. I was worried because I have 225k + and I know steal will loose it's tensil strength over time. This is the first vehicle I have had with torsion bars and I'm learning as I go.
Who would leave a dead moose on the hood for 100k miles?

 

[skitzo.d]

toss on an add-a-leaf in the rear. it helped mine. I forget the part number but you'll find it on the search. it's from a Toyota and goes right under the leafs you have.

 

[found_fish]

I bought the FabTech FTS205 add-a-leaf for mine.