xj axle wrap... traction bar?

[blondejoncherokee]

I see 2 trains of thought- mountig the traction bar on the driver side doesnt help nearly as much as the pass side. But like everyone else ill have to do the driver side due to exhaust

 

[Boostwerks.com]

I see 2 trains of thought- mountig the traction bar on the driver side doesnt help nearly as much as the pass side. But like everyone else ill have to do the driver side due to exhaust

Either side is going to help tremendously with wrap and overall stability. However, the shorter the bar the more severe the torque lift will become simply due to the leverage it has on the chassis (especially on the drivers side).

 

[Boostwerks.com]

It's really not about the body twisting... It's about the axle wrapping and pointing the pinion up or down weather off road or on.. A drivers side Traction bar doesn't "aid" in any amount of twist but the better option is to run it on the passenger side since that is the way the driveshafts spin. Hard part is fitting with exhaust.

Exasperated torque lift is just a side affect of certain TB setups. A TB mounted on the drivers side is still going to control axle wrap, wheel hop and pinion dive.

 

[blondejoncherokee]

Exasperated torque lift is just a side affect of certain TB setups. A TB mounted on the drivers side is still going to control axle wrap, wheel hop and pinion dive.

awesome. exactly what I was assuming but its good to hear it

 

[Boostwerks.com]

awesome. exactly what I was assuming but its good to hear it

:thumbup:

I love mine for sure.

Another thing I forgot to mention is that it's been really nice having the bar be adjustable and not fixed at the axle. I ended up dropping the rear an inch or so by moving the shackle. Even that small amount of drop would have required hacking up the bar to correct the angle if I hadn't made it adjustable. It also made it easy to pre-load the bar a little bit so at static ride height it's pulling down on the chassis. So far it's worked out great.

 

[blondejoncherokee]

:thumbup:

I love mine for sure.

Another thing I forgot to mention is that it's been really nice having the bar be adjustable and not fixed at the axle. I ended up dropping the rear an inch or so by moving the shackle. Even that small amount of drop would have required hacking up the bar to correct the angle if I hadn't made it adjustable. It also made it easy to pre-load the bar a little bit so at static ride height it's pulling down on the chassis. So far it's worked out great.

Ah. I like that idea. just weld in bungs and heims all around ? or did you use an adjustable poly joint ?

just read your build again. I see adjustable poly .

 

[831_xj]

Run a force vector diagram on the traction bar and you will see that under acceleration, the frame end of the traction bar will be pushing up into the the frame. Under braking it will be pulling down. I have my traction bar mounted on the driverside because of the exhaust on the passenger side. Before and after installing showed the amount of twist was a noticeable difference because before, when the axle would wrap, the rear would squat. Now the rear wants to rise because the force of the axle wrapping has been transferred to force pushing up on the frame. With the rotation of the driveline, it now twists the body to the passenger side.

Dont go all star trek on me now.. I understand that, I thought you were stating the reason for why people install TBs.. And it's not because of the torque twist. Real world scenario those side effects are completely useless off road, and it might just be you have a poor design if its that noticeable. Anyways few of other things can help axle wrap if you dont want a TB. Longer perches and U bolt eliminators are a good aid.

That is an awesome idea Boost I'll probably be doing that to my 60 when I am back home!

 

[akendal4]

Dont go all star trek on me now.. I understand that, I thought you were stating the reason for why people install TBs.. And it's not because of the torque twist. Real world scenario those side effects are completely useless off road, and it might just be you have a poor design if its that noticeable. Anyways few of other things can help axle wrap if you dont want a TB. Longer perches and U bolt eliminators are a good aid.

That is an awesome idea Boost I'll probably be doing that to my 60 when I am back home!

Terribly worn leaf springs, ruff stuff 2+ perches, and 38s are to blame mostly for my severe amount of twist and the force from the traction bar doesn't help it.

I will say that looking back on how I built mine, I would have made it so that 2 points are adjustable. This will allow exactly what Boostwerks has done; raise/lower the rig without having to cut it all up and make a new one.