Bodo

I am getting ready to install a 4" lift on my 2dr Rubi. I already have the RC lift, and have Currie adj. front lower control arms on order. Should be here tomorrow. This question is about changing out the rear driveshaft. For those that have had problems, did you change the pinion angle.? I don't know if this would have helped as I am still learning about such things. Or is the rear shaft just too short after lifting? Sorry to keep asking but heh, that's how to learn right?

Bodo

Adding to my own post. This would be a good one for Tom Woods or JE Reel to reply to. Maybe explaining the ins and outs of this. I have done some google searches and found plenty of driveshaft pages and most require a degree in algebra or geometry or trig and such which I have neither. Come to think about it, it's been a long time since I was in school.

RebelJeeper

I just changed my rear (installed a JE Reel 1310) and didn't change my pinion angle (that I know of). If it did I don't notice. The replacement yokes and shaft fit right in the old position. The u joint is just MUCH better and stronger than the CV style OEM shaft.

Red Rubi

You don't need adjustable lowers on a 2 door, you need adjustable uppers. Most aftermarket d/s recomend 0 to 2 degrees for the pinion angle. You have to lengthen the uppers to decrease the angle. If you shorten the lowers to decrease the angle, then you will move the axle too far forward and the tire will most likely rub.

Bodo

I got adjustable lowers for the front to adjust my caster. I didnt want to cut out the tabs for the front mounts like RC calls for using their cam bolts. I know to change the rear pinion angle I will need adjustable uppers for the rear which I intend to order.

RebelJeeper

Hey Bodo...as I stated above, I put in a JE Reel rear shaft this weekend and now have a driveline vibration. Turns out, it's due to the pinion angle not being set correctly. Gonna be putting in some adjustable upper control arms in the rear.

Lesson learned, when putting in a lift kit, just spend the money and get adjustable everything...it's cheaper in the long run.

Bodo

I'm still wondering about the oem shaft. Is it too short after a lift or would changing the pinion angle be all that needs to be done?

Anyway, glad youre gonna get rid of the vibration.

Piginajeep

your oem driveshaft has bearings that spin around the shaft, when you lift the 2 door, it pinches the bearing and overtime they'll break apart...

RotorHead

What Porky said (no insult intended). In addition you will stress the boot and you will end up slinging all of your grease out.

I have a 4 door and I got away with running my factory drive shafts for about 6 months before I had to replace them. I replaced the rear because of trail damage, but the front finally started to make noise so I replace it too.

Piginajeep

here's what a torn boot is!