I have a 1999 Cherokee here in the UK.
I have lifted the Jeep 3 inches front with solid spacer blocks and the rear 2 inches with shackles. I have just ordered complete new uprated rear leaf pack with 3 inches of lift built in. I have also ordered 4 x Rough Country 9000 Nitro shocks (6 inches longer), new braided longer brake lines, 1 inch trans drop and adjustable track bar.
When the rear is all fitted, I will work out what length coils to order for the front so that I can level it up.
So, in short, the Jeep will sit about 5 inches over standard.
My question is, do I need to shim the rear axle when I fit the new leaf packs?
If I do, then it is easier to do at the time of taking the whole back end apart.
How many degrees would you guys recommend?
Are 6 degree shims too much. I want the truck to be silky smooth on the highway and prform off road as well.
Hope you can throw a few ideas my way.
Cheers and here's to happy Jeeping.

 

Will someone please help me?
Pleeeeeeeeeeeeeeeeeeeeeeease

 

should need like a 3* or 4* shim

 

You actually have a few questions and variables coming into play here so no one can give you a specific answer only general answers. First question depends upon what driveshaft your looking at. If it is one of the CV then you will need different shims and possible pins.

My suggestion is to take an inclometer and measure the driveshaft angle, pinion angle and transmission angle. Based off these numbers and chosen driveshaft you will need different shims.

Wish I could be more help, but that is what I had to do with my jeep. The local shop kept wanting to sell me parts saying try this and that. That is the wrong answer as simple math can give you the right answer and save you headaches and cash

 

I want my pinion angle around 2 plus minus a few degrees. Its hard to say what shims you need.

 

i have the rusty's 5" lift and im running a 6 deg shim and have no vibs but i also do not have a tcase drop on mine

 

Thanks guys. I was thinking about 4 degree shims. Might as well, seeing as the whole back end has to come apart to fit the new leaf packs.
Well it won't hurt, will it?
Apart from my wallet that is!

 

Good luck buddy