TrekkerJmm

I am adding 2 more inches to my 3 inch lift. I'm doing coils spacers in front and shackles in the rear and want to shim the rear so what degree angle would be the best, 2.5, 4 or 6 degree? Thanks...Tj

mike37

no way to tell for sure
do you have an SYE
do the lift and then check the DS angle

TrekkerJmm

Ok Ill do that and thanks, BTW no SYE yet but Im working on it...Tj

mike37

if you don't have a CV drive shaft you will need to set the pinion angle to
1 degree less than the TC tail shaft angle

TrekkerJmm

Ok what about dropping the back of the T-case down another inch so I would have 1 in the front and 2 in the back?

mike37

you cant tilt the TC with out tilting the motor and tranny

TrekkerJmm

Ok that kills that idea..lol. I'll take it one step at a time then...Tj

91 Laredo

Are you planning to change out the control arms, track bar, etc when you add 2 more inches to a 3 inch lift?

Not trying to rain on your parade but your most likely going to run into front end problems with 5" of lift and no CA's or steering upgrades. Its a recipe for a harsh ride and death wobble.

Trust me, I've been there and had aftermarket LCA's and an adjustable track bar with 5.25 inches of lift and it drove like crap. Unless its a dedicated trail rig, that much lift I would recommend drop brackets or a long arm kit.

Oh, and plus your axle will be sucked back and will look funny.

To answer your original question regarding the rear end, you may be able to get away with shimming. Depends on the Jeep and in my opinion what Rear end / T-case it has.

My 91 had around 6 inches in the rear and I got away with a T-case drop and shims. It had an AX-15, 231, and Dana 35.

My 94 has 3"s in the rear and wouldnt even drive until I dropped the T-case. It has the AW-2, 242, and 8.25.

TrekkerJmm

Thanks for the advise I will definitely take your advise into consideration before lifting it. I have an AW4, NP231 and a 8.25 and after doing the 1 inch T Case drop it runs great with no vibration ...Tj

91 Laredo

You have the same Zone lift as I with what I assume came with the rear AAL. Did you have binding issues with the driveshaft before dropping the T-case, or did you just have vibes?

Twins....

TrekkerJmm

I had binding when hitting bumps, the ears of the DS rubbed but after the TC drop it went away. NICE truck..lol...Tj

caged

only use the 1 inch drop on the t-case.
you can swap out the slip yoke with one from a yj. they have more clearance against binding and is a direct fit.

you will want at least adjustable lower control arms, and adjustable track bar.

oh, and go with 4* steel shims.

TrekkerJmm

OK thanks all for the advise...Tj

mike37

you can make you existing slip yok a hight angle one
if you have some patience

all you need is a drill or die grinder
grind out about 1/4" were the ears of the ujoint hit

I did this on my DS it worked fine but the shaft starts getting short
at the the lift hight you a doing

TrekkerJmm

You must have read my mind on that one Mike...lol...Tj