Finding Vibration Source - Page 2 - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > Finding Vibration Source

Savvy Aluminum Gas Tank SkidFS: Jeep Fog Light LED Bulbs! Several Brightness Options! Stainless Steel Door Hinge Pins

Reply
Unread 06-28-2013, 02:53 PM   #16
laybackman
Bikini Bridge Inspector
 
laybackman's Avatar
1995 YJ Wrangler 
 
Join Date: Dec 2002
Location: Massachusetts
Posts: 6,085
Quote:
Originally Posted by idaholtby View Post
Well, your pinion angle is definitely too low. I would suggest installing shims that most kits come with and or the least favorite option.... a t-case lowering kit. The ideal option would be a SYE with a CV rear shaft, but with your size lift, this really should not be necessary. If you are thinking of going to a larger lift soon, then this would be the option to pursue. I'm thinking though that rear axle shims will get you what you need.
If you look at the picture you posted of your driveline it doesn't look right. Either the tail end of the TC has to come down or the rear end has to come up. Their angles must be complimentary.

http://jniolon.clubfte.com/driveline...nephasing.html

__________________
Chicks dig me.....Fish fear me

Getting older, I have developed some special skills. I have the ability to cough, sneeze, fart and pee at the same time.

"If we cannot afford to take care of Veterans, then we should stop making them."
David C. Wilker Jr. USAF (RET)
laybackman is offline   Reply With Quote
Unread 06-28-2013, 08:32 PM   #17
TA-YJ
Registered User
1992 YJ Wrangler 
 
Join Date: Dec 2007
Location: Pennsylvania
Posts: 533
I do realize that the pinion angle is a bit extreme. Im still wondering why it started making the vibes with 1" rubber mounts as opposed to the BD ones.
__________________
1992 YJ 2.5L
Engine Mods:4.0L TB, Ford Design III 19lb Injectors, Firepower Ignition System, Ford TBird Electric Fan, Pacesetter Header, Magnaflow Cat, Dynomax Super Turbo Exhaust
Suspension Mods:BDS 2" Lift, M.O.R.E. 5/8" HD Shackles, 1" Brown Dog MML
Other:LED Tails and Herculined
TA-YJ is offline   Reply With Quote
Unread 06-29-2013, 06:25 AM   #18
laybackman
Bikini Bridge Inspector
 
laybackman's Avatar
1995 YJ Wrangler 
 
Join Date: Dec 2002
Location: Massachusetts
Posts: 6,085
Quote:
Originally Posted by TA-YJ View Post
I do realize that the pinion angle is a bit extreme. Im still wondering why it started making the vibes with 1" rubber mounts as opposed to the BD ones.
Find out by swapping in the BD mounts!
__________________
Chicks dig me.....Fish fear me

Getting older, I have developed some special skills. I have the ability to cough, sneeze, fart and pee at the same time.

"If we cannot afford to take care of Veterans, then we should stop making them."
David C. Wilker Jr. USAF (RET)
laybackman is offline   Reply With Quote
Unread 06-29-2013, 01:44 PM   #19
TA-YJ
Registered User
1992 YJ Wrangler 
 
Join Date: Dec 2007
Location: Pennsylvania
Posts: 533
They were in with the new engine but the idle vibes were aggravating me so I swapped them for the lift plates. There wasn't anything close to the in gear vibes I'm getting now
__________________
1992 YJ 2.5L
Engine Mods:4.0L TB, Ford Design III 19lb Injectors, Firepower Ignition System, Ford TBird Electric Fan, Pacesetter Header, Magnaflow Cat, Dynomax Super Turbo Exhaust
Suspension Mods:BDS 2" Lift, M.O.R.E. 5/8" HD Shackles, 1" Brown Dog MML
Other:LED Tails and Herculined
TA-YJ is offline   Reply With Quote
Unread 06-29-2013, 03:20 PM   #20
laybackman
Bikini Bridge Inspector
 
laybackman's Avatar
1995 YJ Wrangler 
 
Join Date: Dec 2002
Location: Massachusetts
Posts: 6,085
Quote:
Originally Posted by TA-YJ View Post
They were in with the new engine but the idle vibes were aggravating me so I swapped them for the lift plates. There wasn't anything close to the in gear vibes I'm getting now
Did your driveshaft have any of those small counterweights on them that got knocked off. And if you removed the driveshaft and installed it in a different position that could be the problem.

Get this rig up on four jack stands and run it. See what you can see.
__________________
Chicks dig me.....Fish fear me

Getting older, I have developed some special skills. I have the ability to cough, sneeze, fart and pee at the same time.

"If we cannot afford to take care of Veterans, then we should stop making them."
David C. Wilker Jr. USAF (RET)
laybackman is offline   Reply With Quote
Unread 06-29-2013, 05:15 PM   #21
TA-YJ
Registered User
1992 YJ Wrangler 
 
Join Date: Dec 2007
Location: Pennsylvania
Posts: 533
It does have a counter weight I believe, but I think its still on there. Ill check. I sprayed the Ujoints and the pinion on the axle so I knew both front and rear drive shafts went in with the same orientation. Im going to try the Tcase drop tomorrow to fix the drive line angle and see how that does.
__________________
1992 YJ 2.5L
Engine Mods:4.0L TB, Ford Design III 19lb Injectors, Firepower Ignition System, Ford TBird Electric Fan, Pacesetter Header, Magnaflow Cat, Dynomax Super Turbo Exhaust
Suspension Mods:BDS 2" Lift, M.O.R.E. 5/8" HD Shackles, 1" Brown Dog MML
Other:LED Tails and Herculined
TA-YJ is offline   Reply With Quote




Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.