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Question drive shaft angle

2K views 13 replies 6 participants last post by  MudMagnetYJ 
#1 ·
Hi gang.

New member here.

Bought a 95 YJ to replace my rusted out 92 to plow my driveway.

Pretty clean, but the tranny cross member was toast. The tranny mount had actually fallen through the pan!.

Ordered up a new one and new mount from quadratic. Replaced one nutserts and all the bolts.

We installed yesterday, no real issues; until we went to reinstall. We had to jack the tranny up about an inch or so to get the pan to meet the chassis.

Here's a pic of the front drives haft angle. Seems steep to me, but I don't remember what it looked like before the repair.

I think the truck has a slight lift, see pics.

Your thoughts?

Pics to follow, trying to load from phone, but I have to resize.

I'm meantime can someone post correct angle of drive shaft at tranny output.

Thanks all.
 
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#9 ·
What I just noticed that is rather concerning is how far out your slip yoke is. I'm not sure how long they are, but it looks like that's out a lot farther than what would be considered the norm.
 
#3 ·
Those look like aftermarket shackles. Can't tell about the springs from your pics.

Stock shackle height should be 4", bolt center to bolt center.

Ask around, you could find a set of stock shackles for free. Many Jeepers have them laying around as take offs.

Good Luck, L.M.
 
#4 ·
THose do look like lift shackles, and the spring in the first picture looks like it's starting to have negative arch. Maybe the lift shackles were a bandaid for sagging springs?
 
#5 ·
Yeah, it looks like stock springs(flat) with some aftermarket small shackle lift.
Your rear driveshaft angle looks reasonable...but how does the lower angle look at the rear differential?
 
#6 ·
If you don't get driveshaft vibrations at highway speeds, I wouldn't worry.

Check out a few recent threads on this forum. In one of them DREDnot has posted a diagram of the angles at the differential and transfer case tailshaft.

Good Luck, L.M.
 
#11 ·
Update

Hi

After 50 miles over the last month of my floor pan rumble I finally dropped my pan about an inch and all the nasty vibrations and growling has stopped.

I ended up buying longer grade 8 bolts and 6 plumbing nipples (bushings); 3/8" × 1" long.

Less than an hour, dropped 1 side at a time; leaving a long bolt in to keep alignment and I was good to go.

Thanks for all the suggestions.

One thing I like about my Jeep is everything is straight forward ando no exotic materials or critical torque requirements.

It's actually stress free and enjoyable wrenching it.

Compared to my '82 911 it's like an erector set; luckily the 911 is rock solid and really requires very little if maintained per specs.

Cheers
 

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#14 ·
Torque specs... Ha! A good deal of these bolts are German torque... I still bust out the torque wrench for engine stuff, lug nuts, and any bearing.

Skid pan? I use torque setting 1 on my impact.
 
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