'90 XJ
3.5" RE lift w/full leafs
242 Tcase, AW4
I put in a Tom Woods SYE and drive shaft b/c I was getting knocking from slip yoke after the lift. Now after the SYE, I'm getting vibes...
The vibes start at MPH and go through 35 mph or so. After MPH, I get occasional harmonic vibes, but not too often. Also, I think I'm still getting a little knock when I let off the gas, but it's hard to tell.
Here's what I'm checking, please let me know where else to look.
1. before the SYE, Pinion angle was 7.5 at the diff and 7 at the Tcase IIRC. I'll measure again tonight to be sure all is well.
2. I had a little trouble with the rear bearing on the install, so I'll break down the shaft, SYE and bearing cover to be sure everything is seated right and bolts are tight.
3. Drop the front drive shaft to see if that's where the vibes are from.
questions:
Anything else I should be looking at?
Can the bolts on the SYE (SYE to output shaft, DS to SYE) be over torqued? I torqued them to 25 ft/lbs or so. too much? too little?
Did running without the SYE mess up the t-case? (probably 1k miles)
Thanks in advance,
Andy
3.5" RE lift w/full leafs
242 Tcase, AW4
I put in a Tom Woods SYE and drive shaft b/c I was getting knocking from slip yoke after the lift. Now after the SYE, I'm getting vibes...
The vibes start at MPH and go through 35 mph or so. After MPH, I get occasional harmonic vibes, but not too often. Also, I think I'm still getting a little knock when I let off the gas, but it's hard to tell.
Here's what I'm checking, please let me know where else to look.
1. before the SYE, Pinion angle was 7.5 at the diff and 7 at the Tcase IIRC. I'll measure again tonight to be sure all is well.
2. I had a little trouble with the rear bearing on the install, so I'll break down the shaft, SYE and bearing cover to be sure everything is seated right and bolts are tight.
3. Drop the front drive shaft to see if that's where the vibes are from.
questions:
Anything else I should be looking at?
Can the bolts on the SYE (SYE to output shaft, DS to SYE) be over torqued? I torqued them to 25 ft/lbs or so. too much? too little?
Did running without the SYE mess up the t-case? (probably 1k miles)
Thanks in advance,
Andy