Peak Lift Issues

[ZR2BIZON]

this picture?View attachment 17954

Yep

 

[MrScottly]

Since some folks don't like when I write essays on here, let me simplify this by adding this link:

He does a great job at explaining how things work. Pay attention TC and Diff shafts and parallelism. It's important, but if the dirve shaft is at a 20deg angle, all the parallel in the world won't matter.

 

[glossner2001]

There are a ton of people riding with the Peak lift - I would think my issue would be more widespread if there was driveline angle issues, right?

 

[MrScottly]

There are a ton of people riding with the Peak lift - I would think my issue would be more widespread if there was driveline angle issues, right?

I would assume (there's that word again). More thoughts and questions...Are the rear lift blocks completely squared, or is there an angle on one surface? That would make them directional...So are they installed in the correct direction?

 

[glossner2001]

I would assume (there's that word again). More thoughts and questions...Are the rear lift blocks completely squared, or is there an angle on one surface? That would make them directional...So are they installed in the correct direction?

Peak blocks are square.

 

[Nmass94]

There are a ton of people riding with the Peak lift - I would think my issue would be more widespread if there was driveline angle issues, right?

You'd think this- but I had the exact same issue with a BDS kit in an F150- and BDS sells alot more kits than peak.
I think sometimes it can be due to how they mount (weld) the spring perches on the axles.
I'm not sure what the factory tolerance is, but if it was off a couple of degrees it could cause the issue.

 

[AXE]

Well, rotating tires and hub rings did not fix it. Has to be the alignment.

I thought someone already said that wasn't your problem?

 

[glossner2001]

I thought someone already said that wasn't your problem?

Axe thank you haha

 

[AXE]

Axe thank you haha

I'm always here for everyone!

 

[philjr99]

If you add vertical distance between the front diff and the hub you change the angle of the front axle tripods. There’s no way around it on these pickups without lowering the front diff to compensate for the angle. Front axle shafts are splined into the hubs so they spin regardless of 2/4wd. Changing that tripod angle creates vibration. Pay the hour and ask your gm dealer to hook up a pico scope and perform a vibration analysis of your truck. It will tell you the frequency of the vibration in relation to things on your truck that spin. At least give you an idea of what you’re up against.