NC211

Question: What will TSB DL00296-960426 "Driveshaft & differential-mount changes" fix?
I have a 95, had ball joints replaced, engine & tranny mounts replaced, can't seem to hunt down a vibration under normal to heavy load during normal acceleration between 35-65 mph. I can't figure it out. Maybe the differential mounting is bad??? Would worn our rear bushings cause this? The second I take my foot off the gas, the vibration goes away. It's noticable going up a hill and maintaining my 40mph speed. Any suggestions??? Here is the tsb below.






Driveshaft & Differential - Mount Changes

REF: DRIVELINE/DIFFERENTIAL

NO.: DLOO2-96

DATE: APRIL 26, 1996

MODEL: LS 400

Title: LS 400 DRIVESHAFT & DIFFERENTIAL MOUNT CHANGES

For improved driving smoothness when accelerating from approximately 35 m.p.h., the following production changes have been made:

1. Rear drive shafts phase-matched between inboard and outboard joints.

2. Dynamic spring constant of differential rear mount changed.

3. Dynamic damper added to stabilizer bracket.






PART NUMBER INFORMATION:

PRODUCTION EFFECTIVE:

Starting VIN: JT8BH22F # T0036670

bicol-ini

hello, have you inspected your flexible coupling, they are prone to cracking also, your universal joint or spider bearings also worn out, maybe your center support bearing have this checked out, i ve just replaced my flexible coupling, its also on the other site US LOC club , under the heading replace fexible coupling i attachecd some pix to it or email me for pix

NC211

I don't know what those are, but anyone with 400k miles on anything definetly get's my attention. I'll check out what those are. Are they expensive to replace? It's definetly something in the drive train or engine doing it, and it's getting worse. The whole car wobbles when accelerating, it always has since I got it 10k miles ago. The second you take your foot off, it stops. It also shifts a bit hard into gears. I'm thinking you're right, I've heard these things wear out too. I'm getting to the point where I'm beyond the normal parts wearing out, and into the specialty ones, like a flex-coupling or spider bearing. Can you send me some photos of what I'm looking for? You can send it to me on PM, or rtw211@yahoo.com.

400k miles on same engine and tranny? Dang, now that's impressive!

Thanks Bicol-ini!

NC211

bicol-ini, nevermind on the pictures, I found your postings on the other site. I had no idea that site was there!