I got an angle finder today and this is what I came up with. My driveshaft angle is 17 degrees and the pinion angle is 8 degrees. I have been told by several people that the pinion angle should be 2 degrees below the angle of the driveshaft, is that true? If it is do I order a 6 degree or an 8 degree shim? One garage told me that I should be ok with a 1 degree shim. I'm so "F"ing confused and at this point I'm not sure what to do. Can you guys please help me out. I have a 2001 Cherokee with an Auto trans, 4.0L, 8.25 rear, a RE 3.5 superflex, an SYE, and a Tom Wood's shaft. So as you can see I'm trying to build this thing with the right stuff, just this one has me confused.
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what degree shims should I order?
- Thread starter Semper Fi
- Start date
the math tells me 8 degrees, but I would go with the 6 degree. The most important part is keeping your diff lubed. Regardless, I would overfill your diff a little after you are done. If you have the money buy both sets, never hurts to have them on hand just in case the 6 degree doesnt work for you.
How bad are your vibes now?
How bad are your vibes now?
the vibes aren't to bad. they start at about 25 to 35 and start again at about 50. I might order both sets of shims and then return the ones I don't use. Is there anywhere you could recommend to order them from? I was going to order them fro RE, there are about $31 a set
RCP Phx
NAXJA Forum User
- Location
- Phoenix,Az
No more than 6*,you get about 1.25*-1.5* of net change with an SYE kit,so a 6* shim will "net" about 9* of change!
XJLaredo
Member# 1562
- Location
- Lacey, Wa.
cocoloco said:
Same here.
RCP Phx said:
If this is true should I just order a 4* shim? would a 6* shim be to much? Would it be bad if I ordered a 6* shim and got an angle of say 18* at the pinion and 17 at the driveshaft? If I get the 4* shim and get an angle 14*, or there about, would that be better than ordering a 6* shim and taking the chance of being greater than the driveshaft?
jsk2052
NAXJA Forum User
- Location
- Bethlehem, Pennsylvania
where in pa are you? our jeeps sound identical and i'm dealing with same issues right now
Tequila Crawler
NAXJA Forum User
- Location
- Mission ,Tx
Hey guys, a have the same problem only at 1 1/2 lift block in the rear. the vive is @ 30 to 40 m/h .aftre that is gone... any ideas?:repair:
MrShaft696
NAXJA Forum User
- Location
- Blue Bell, PA
I would love to see a picture of you holding a angle finder on the driveshaft and a picture of you holding the angle finder on the rear pinion yoke then it would be cake to know what to order
RCP Phx
NAXJA Forum User
- Location
- Phoenix,Az
YES!Semper Fi said:
jeepnuts311
NAXJA Forum User
- Location
- Atlanta, Georgia
rear sitting at 5" with np231 AAsye tom woods d/s and dana 44 turning 35s. i use 2.5* shim and no vibes.
-Tim
-Tim
Begster
NAXJA Forum User
- Location
- Cape Cod/Boston, Mass
I now had RE4.5 with I believe 4 degree shims, and nothing, now at 5.5 with 4 degree shims, and still, I am not noticing any vibes, Shouldn't your SYE have gotten rid of it all more or less?
RCP Phx
NAXJA Forum User
- Location
- Phoenix,Az
RE uses 3/8"
- Location
- Coshocton, OH
Survey says........ernt!RCP Phx said:
Cry 8.25 5/16"
Dana 35 3/8"
RCP Phx
NAXJA Forum User
- Location
- Phoenix,Az
Dont quite get your post,but all factory springs are 5/16".Alot of aftermarket springs like RE (like He's running) use 3/8",axle type doesn't matter.scoobyxj said:
CartsXJ
NAXJA Forum User
- Location
- Glenville, NY
I hate to tell you this, but you won't really be able to tell what shims you need until you get the axle bolted up and measure it. I have 5.5" lft in the rear, a 242 t/c with tom woods sye and I don't use any shims, went from 6* to 4* to 3*, even 2* and was still getting vibes. Now no shims = no vibes. Remember every XJ is different.
