Transmissions and Drivetrain Need help with your trans? Problems with your axle?

An Occasional THUD

Reply Subscribe

Search this Thread

Old

Oct 10, 2003 | 11:52 PM

#1

Thread Starter

Supreme Member

Joined: Apr 2003

Posts: 1,265

Likes: 2

From: Hill AFB, Utah

Car: 1988 Trans Am GTA Notchback

Engine: 305ci, 5.0L, TPI, HO

Transmission: Borg Warner T5 5-Speed

Axle/Gears: 9-Bolt Positraction Rear w/3.45 Grs

An Occasional THUD

While I'm driving, I occasionally hear a THUD as I shift gears. So far, it has only happened when I engage 1st, usually on takeoff. I just replaced the U joints since they were stock and rusted, that seemed to help a little. But I heard it again the other day. Any thoughts???

Old

Oct 11, 2003 | 12:11 AM

#2

Senior Member

iTrader: (2)

Joined: Jan 2002

Posts: 925

Likes: 0

From: Kingsport, TN

Car: '92 RS, '84 Z28

Engine: 383, L69

Transmission: T56, 700R4

Axle/Gears: 3.42, 3.42

Could be a broken tranny mount.

Old

Oct 12, 2003 | 07:58 PM

#3

Senior Member

Joined: Sep 2002

Posts: 762

Likes: 1

From: Long Beach, CA

Engine: 305 TPI (LB9)

Transmission: WC T-5

Almost certain it is a broken tranny mount... pull it and check (the mount, not the tranny).

Old

Oct 14, 2003 | 10:57 AM

#4

Member

Joined: Aug 2003

Posts: 364

Likes: 0

From: institute, wv

Car: 91 RS

Engine: LO3

Transmission: T-5

due, your clutch isnt disengaging all the way. been there, done that.

Reply Subscribe

Related Topics

Thread

Thread Starter

Forum

Replies

Last Post

89 gta 5.7, runs too rich, won't rev, stalls instead

gta892000

TPI

13

Aug 11, 2019 11:16 AM

New to this Section- First LS Swap

grngryoutmyway

LTX and LSX

325

Oct 18, 2016 05:48 PM

Intermittent Rough Idle and Stalling

Grant2k

TBI

11

Apr 4, 2016 08:21 AM

[CA] 1989 Trans Am w/ just 32k miles for sale

jrdturbo

Firebirds for Sale

26

Mar 31, 2016 02:58 PM

Timing fluctuation

db057

TBI

13

Sep 4, 2015 07:57 AM

First
Prev
1 / 1
Next
Last

All times are GMT -5. The time now is 06:28 AM.