Originally Posted by pickuptruckguy
...Back to the axle rap U bolt mod, what would the advantages and disadvantages be of installing the U bolt around the 2 leafs and the overload leaf instead of just around the 2 leafs?
Stiffer ride, more resistance to wrap.
Originally Posted by wolfgang123
Im not talking about under normal driving conditions, im talking about on the trail flex, when the trac bars heim joints max out and your suspension still has room for more flex all of that force is being transferred and held in that traction bar, which is now in a sense holding "up" the weight of your rear axle or the force of the leaf springs and gravity attempting to flex the axle (really bad description but the best one i can think of at the moment) this flex i am worried will tweak and twist your cross member.
If the trac bar is designed properly, that should never happen. Mine doesn't bind at all at full suspension travel. The misalignment spacers on the heim joint allow for 34 degrees of articulation. That's...a lot. With my shackle flip and relocation shock mounts plus 15in travel shocks, my rear axle flexes a little over 20 degrees. To get over 30 on these trucks you're going to have to seriously re-engineer the rear end, probably with a coil-link suspension, and remove the bed.
You can see here the delta between frame and axle is nowhere close to 30 degrees...I'm not at full flex in this picture (close, but not quite) so this is probably somewhere in the high teens in terms of angle...
If a trac bar binds at full flex, it was mocked or installed wrong, or both. It should never carry the weight of the vehicle, just locate the axle within the rotational plane of the wheels.
Originally Posted by SpeedoJosh
So I installed them about a fist length from the axle mount on each side. Tightened them down a pretty decent amount
Problem is, it feels like my truck is more stiff/bouncy on bumps. Did I put them in the right place, or maybe tighten them too much?
I didn't have any problems when stopping like most complain of, but it did feel like when I would go over bumps, usually in the lower speed acceleration, my rear end would bounce around, almost like it was skipping. Which is the reason I installed these.
Haven't hit many big bumps to see if that bump is still there.
Clamping the springs effectively combines all the leafs into one in the area behind the clamp. This effectively stiffens spring rate in that area. That's why it decreases axle wrap, but yes, it will also result in a rougher ride.
Including the overload leaf will also worsen this issue. It's made for extremely heavy loads and has an extremely stiff rate.