TJ lift

[manouso]

Just curious, how much lift on a tj can you have before drive line modifications are needed? My friend is getting bad vibrations in her tj ( with an auto trans) at around 60 mph. She has 3 or 4 inches of lift.

Thanks

Manouso

 

[pokeyYJ]

While I don't have a TJ myself, I have three friends with TJ's and my dad own a TJ. They all have lifts, the maximum amount that we have been able to go was three inches. This is with out adjustable lower control arms. One of my friends was running the Teraflex three inch with two inch spacers and the Flex arms on the bottom. He was able to adjust the pinion angle so that the vibration went away. (Note that he did have to put the transfer case skid plate spacers in to help the angles of the rear shaft.) Another idea is to check the u-joints for wear. My friend had a 97 TJ with a two inch lift and after about 50,000 miles the u-joints started to wear out. This caused a bad vibration and replacing the u-joints fixed it. Hope this helps.

 

[demon jeep]

I have a 99 TJ with a auto and 3.5" of lift with 0 vibrations did she put the
tranny drop kit in and raise her pinioin agail(duh spelling?). If she has a 4" she will need to get a SYE kit on it or she can get a1" motor lift and MAYBE okay that way. Also check U joints