1966 Rearend Width
Tuned
Joined: Sep 2001
Posts: 279
Likes: 0
From: Western PA
1966 Rearend Width
I think I read somewhere that different years have different sized (width) rearends? Since I have 4.11 gears and want to change this to a stock ratio I need to find another rearend. Also someone said the spline count was different too? I guess I need to check the housing width if I need to change the entire rearend and I also need to count the splines if I keep my housing and axles and just change the pumpkin part...???
Postmaster
Joined: Nov 2001
Posts: 3,351
Likes: 1
From: Escondido, CA
1966 Rearend Width
The only information you will need is the spline count. The ring and pinion gears bolt up to any 9" rear end. And while your at it you may want to rebuild yours. Look in the tech article for the rebuild steps. Good luck.
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Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
1966 Rearend Width
jc, In 73 the rear axle was widened, although the 9" center section is the same. You will have to pull an axle and count the splines and get a new pumpkin with the same number of splines. What are you planning to install?
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John
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John
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[link:www.ford-trucks.com/users/jowilker|My Club FTE Page] Member since 01 01
[link:www.ford-trucks.net/users/jowilker/NCFTE.html|NCFTO] North Carolina Ford Truck Owners Group
In the cool still quiet of night, you can hear chevies rusting away.
