Where to find 3.90 ring & pinion
#1
Junior Member
Thread Starter
iTrader: (6)
Join Date: Feb 2008
Location: Florida
Posts: 87
Likes: 0
Received 4 Likes
on
4 Posts
Car: 1989 Chevorolet Iroc-z convertible
Engine: 383, holley terminator efi
Transmission: T-56
Axle/Gears: stock 10 bolt w/ 3.73
Where to find 3.90 ring & pinion
I have a 1989 Camaro with a 2.73 rear. This is a 2 series rear. I want to put a 3.90 rear in it.
Thanks
Thanks
#2
Moderator
Join Date: Jul 1999
Location: 51°N 114°W, 3500'
Posts: 17,120
Likes: 0
Received 123 Likes
on
104 Posts
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: Where to find 3.90 ring & pinion
It's not a common size for the tiny 7.5" ring and pinion. There are very few performance ratios available.
3.23
3.42
3.73
4.10
4.56 with a special cross pin.
3.23
3.42
3.73
4.10
4.56 with a special cross pin.
#3
Re: Where to find 3.90 ring & pinion
It would be easier to shift your tire size around for the effect your looking for than bothering with 3:90's.
4:10 with a 28" tall tire run around the same RPM as a 3:73 with a 26" tall tire. Find your medium.
4:10 with a 28" tall tire run around the same RPM as a 3:73 with a 26" tall tire. Find your medium.
Thread
Thread Starter
Forum
Replies
Last Post
hectre13
Engine/Drivetrain/Suspension Parts for Sale
2
12-11-2023 08:14 AM
ambainb
Camaros for Sale
11
04-25-2016 09:21 PM
lt1z350
Engine/Drivetrain/Suspension Parts for Sale
3
09-29-2015 01:50 PM
hectre13
Engine/Drivetrain/Suspension Parts for Sale
7
08-26-2015 08:17 AM