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Discussion Starter · #1 ·
Ok i have a 92 jeep wrangler, 2.5L 5 speed remanufactured tranny about 15000 miles ago. Last thursday i noticed a vibration in 3rd gear, and i only feel it in 3rd gear so i'm thinking tranny. Well its under waranty so it was no big deal to me, but now it also vibrates in 4th and 5th gear, and out of gear at high speed. I don't detect any vibration in 1st or 2nd gear. i feel the vibration both in the steering wheel and in the seat of my pants. is it posibly the drive shaft u-joint?? or maybe the rear diff(this summer i noticed that if i rock the back of the jeep hard back and forth i hear a tonk) any ideas or methods to check without tearing it appart would be greatly apprieciated

TugBoat Proud owner of a 1992 JEEP Wrangler YJ
4Cyl 2.5L w/ 5 speed manual tranny
totaly stock
 

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829 Posts
Check your U-Joints, Does it vibrate at low speeds in 3rd?

Rodney C
1985 CJ7,302 V8,T18,D20,SOA,Shackles Reversed, 35" BFG AT's, Fiberglass Tub & Front End...
1990 Samurai,87 drive line,SOA+2.5" Add-A-Leaf,4.16's,5.12's,33" BFG's Mud's,Pony Carb...
 
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Discussion Starter · #3 ·
it vibrates at about 1200 rpm and up in third all through fourth and all through fifth

TugBoat Proud owner of a 1992 JEEP Wrangler YJ
4Cyl 2.5L w/ 5 speed manual tranny
totaly stock
 

·
Registered
Joined
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829 Posts
If the U-Joints are ok then head back to the tranny shop! Good Luck:

Rodney C
1985 CJ7,302 V8,T18,D20,SOA,Shackles Reversed, 35" BFG AT's, Fiberglass Tub & Front End...
1990 Samurai,87 drive line,SOA+2.5" Add-A-Leaf,4.16's,5.12's,33" BFG's Mud's,Pony Carb...
 
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