4:30 vs 3:73
Cargo Master
Joined: Jan 2009
Posts: 2,769
Likes: 8
From: Lubbock
It is possible to use the stearling 10.25 parts to reduce cost that part was in a 4wheel magazine. Might save some bucks I wouldn't do it if I planned on towing heavy but might be a option to save a few nickels and dimes. A good driveline shop or gear vendor will know what is intercheangeable
Lead Driver
Joined: Jun 2007
Posts: 6,757
Likes: 5
From: Corvallis, OR
I had 3.73s before. I wanted 4.30s because I couldn't decide for sure if I wanted to run 37s and 4.30s are better for 35s. Plus, I got the new gears and install kits for both axles on Ebay for about $550 
Senior User
Joined: Mar 2006
Posts: 350
Likes: 0
From: Frankford, NJ
i have always wondered if it was possible to call my extended warranty company and tell them my rear end blew out and tell them the axle code for 4.30 gears and a limited slip. i guess i can dream
Lead Driver
Joined: Jun 2007
Posts: 6,757
Likes: 5
From: Corvallis, OR
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Lead Driver
Joined: Jun 2007
Posts: 6,757
Likes: 5
From: Corvallis, OR
Yes that is correct, but 3.73 is short for 3.73:1. 3:73 is wrong.
Senior User
Joined: Mar 2006
Posts: 350
Likes: 0
From: Frankford, NJ
https://www.ford-trucks.com/forums/4...lder_____.html
Cool thanks man.... Mine shows C3 = 4:30 Limited Slip
FTE Leadership Emeritus
Joined: Sep 2003
Posts: 12,246
Likes: 761
From: Houston, Texas
Me too....they sold me my gears and they have awesome customer service.
Yes they are...Monsta had the same problem when I sold him my 4.30s. They were meant for my 10.25 rear and he had a 10.50 rear. A 10.25 install kit later, Monsta has a BSEG. 