|
10-24-2018, 07:45 PM | #1 |
VIP Member
Join Date: Feb 2006
Location: Dela-where?
Posts: 2,111
Likes: 998
Liked 1,634 Times in 516 Posts
|
9" ring and pinion question
I am looking for a replacement gear set for my 9" ford. My question is I see a 4.56 and a 4.57 ratio listed. Why is there such a close ratio offered, and what is the difference, advantage or disadvantage to using one over the other? I guess I will also ask what brand everyone recommends and why? Thanks!
__________________
KEITH MAYERS 2 X somebody many X nobody |
10-24-2018, 09:04 PM | #2 |
Veteran Member
Join Date: Mar 2002
Location: Miles From Nowhere
Posts: 7,391
Likes: 2,563
Liked 4,411 Times in 1,682 Posts
|
Re: 9" ring and pinion question
Keith, The original Ford replacement gear sets were 4.57. (7, 32)
Somewhere along the line , someone decided to use the GM style of 9, 41. Maybe one of the engineers here could tell us which one would be stronger..theoretically, anyway.
__________________
We are lucky we don't get as much Government as we pay for..... Will Rogers |
10-24-2018, 10:07 PM | #3 |
Junior Member
Join Date: Oct 2014
Posts: 42
Likes: 0
Liked 9 Times in 8 Posts
|
Re: 9" ring and pinion question
I run a US Gear 4.57[pro gear] from Strange, part # RPO7990457US with 35 spline pinion, easy to set up, I had a Richmond 4.57 in car before that was developing a abnormal wear pattern and I called Strange, they recommended the US Gear and when I received it and compared the two I'm glad I bought it.
|
10-25-2018, 06:42 AM | #4 |
Member
Join Date: Oct 2017
Location: Bay City Texas
Posts: 355
Likes: 1
Liked 201 Times in 122 Posts
|
Re: 9" ring and pinion question
The 7/32 is less teeth on each gear = stronger teeth.
|
10-25-2018, 09:15 AM | #5 |
VIP Member
Join Date: Feb 2006
Location: Dela-where?
Posts: 2,111
Likes: 998
Liked 1,634 Times in 516 Posts
|
Re: 9" ring and pinion question
Thank U guys, just like that TH 400 thread I’m learning something new every day
__________________
KEITH MAYERS 2 X somebody many X nobody |
Thread Tools | |
Display Modes | |
|
|