Transmission oil?

Reply Subscribe

Thread Tools

Search this Thread

Jun 25, 2013 | 09:12 PM

jso789

Thread Starter

Advanced

Joined: Mar 2013

Posts: 72

Likes: 0

From: New York

Transmission oil?

Hi all,

I noticed there is a whine in my transmission in 1,2,3rd gears. Car is a stock 81 with 4 speed stick. I have heard that some 4 speeds whine in the reduction gears. Is this normal for this transmission or is the gear oil possibly low? How is the oil level checked? and finally if it is low, then what weight oil should I use in it?

Thanks

Jun 26, 2013 | 04:27 AM

terrys6t8roadster

Melting Slicks

Joined: May 2012

Posts: 2,192

Likes: 343

From: Allenton Wisconsin

fill plug on passenger side of trans, 80w90 gear oil, drain plug on bottom, maybe a drain and refill is in order. fill to the threads on the side fill. when in lower gears you are putting power through the cluster shaft therefore there will be a slight increase in gear noise. 4th is straight through.

Jun 26, 2013 | 05:13 PM

jso789

Thread Starter

Advanced

Joined: Mar 2013

Posts: 72

Likes: 0

From: New York

Thanks for the reply. I should probably change it anyway considering the oil (if any, haven't checked it yet) that is in there is probably from 1981 lol. Anyway should I run conventional or synthetic oil or does it really make a difference?

Jun 26, 2013 | 11:41 PM

pappy.72

Race Director

Joined: Dec 2007

Posts: 10,074

Likes: 77

From: Elgin, IL

Remember, always remove the fill plug first when doing this. If you can't get it out after you drain the fluid you are stuck.

Jun 27, 2013 | 07:11 AM

Marlin

Drifting

Joined: Aug 2005

Posts: 1,372

Likes: 4

From: Springfield VA

I prefer Syn but there is a 75w90 semi-syn as well. Wal-mart has the 75w90 semi-syn pretty cheap.

But make sure the car is lifted even (front and rear). If not your trans oil level will be off. Also get a can of brake cleaner to clean off any wet spots and check for leaks.

Last edited by Marlin; Jun 27, 2013 at 07:13 AM.