speedometer gear
Thread Starter
Cruising
Joined: May 2007
Posts: 10
Likes: 0
From: Easton MA
speedometer gear
I pulled the gear out of the transmission tail piece to go pick up a new one. It is a natural color with 19 teeth. Well, I thought I was all set to pick one up and looked in the parts book to confirm what I had and now I have a problem. I have an automatic and all the gears for them range from 34-45 teeth. The 19 teeth gear is for a manual transmission. How can I figure what gear I need? The gear that is still in the tail piece is orange, I don't know if that might help determine what I need or not. The car is a 1980 but I don't know what gear ratio the rear end is, how do I determine that?
Also, shouldn't there be oil in the tail piece? Mine is bone dry!
Thanks for any help
Also, shouldn't there be oil in the tail piece? Mine is bone dry!
Thanks for any help
Thread Starter
Cruising
Joined: May 2007
Posts: 10
Likes: 0
From: Easton MA
Thanks for the info Duke. Does it make a difference whether it is an automatic or manual transmission?
Shouldn't there be oil in the tail piece?
Can't wait to see how fast I'm going, although I'll probably bury the needle since it only goes to 85 mph.
Shouldn't there be oil in the tail piece?
Can't wait to see how fast I'm going, although I'll probably bury the needle since it only goes to 85 mph.
Racer
Joined: Jan 2005
Posts: 499
Likes: 0
From: Enfield CT
I have a 1980 and had a 307 rear end. I switched the rear gears to 373s.Now the speedometer was reading 2 fast.I switched to a red gear,22 teeth.This slowed the speedo down,now its accurate up to about 40mph.Its still reading about 5 to 7 mph fast over 45mph.Hope this helps
Le Mans Master
Joined: Mar 2001
Posts: 6,640
Likes: 287
From: Ann Arbor Michigan
