Compression Ignition Addict
Join Date: Oct 2008
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I thought I would update everyone with my Sulastic springs situation. I sent Sulastic my springs back and they fully refunded me, and also came to a conclusion to what happened. Sulastic emailed me the following:
"You are right the problem was generated by the combination of; after market lift kit, rear leaf springs as well as the amount of torque and power that forced the axle forward pushing the front side of leaf spring and with that deformation the back of the truck was pushed up and let the sulastic rubber springs to rotate under the hanger of your truck and when the torque was out and you hit the driveway everything went back to its normal position,
This problem can't happen in stock suspension because the Leaf spring is almost horizontal in front of the axle so the amount of torque goes in horizontal direction against the frame and the movement of the axle is very small, but when the leaf spring has more angle it can flex more, that's why sometimes the manufactures of lift kits use torsion bars to kept the axle and drive train in place and avoid this kind of problems."
Anyways, their good customer service has me wanting to give it another try with "torsion bars"? Is that the same as like a ladder bar in a 4 link suspension? Since I have the best Pro Comp lift I'm surprised these bars weren't part of my 8" kit. My question is, where should I get some bars to help me prevent putting too much torque on my back end like I did already. If I can get this straightened out, I'm thinking about trying the sulastic springs again. Because they were working wonderfully before they rolled under my leaf springs.
2006 F250 King Ranch