7 3/4 8/3/4
Mopar Fan
Joined: Mar 2010
Posts: 70
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Mopar Lover
Joined: Jan 2007
Posts: 1,117
Likes: 18
From: Lynnhood, Wa
7 1/4 - Smallest axle, cam in slant 6 / 318 type applications
8 1/4 - Fairly heavy duty, came in later 70 type cars, behind 360s and they hold
8 3/4 - Strongest. Very heavy duty. Pretty hard to break though it does happen. This is most recommended.
Dana 60 - Ultimate. If you have an all out race car and plan on racing an 11 sec 4 speed car, use this. Will most liekly never break.
the 7 1/4 and 8 1/4 and Dana have a rear cover on the back. The Dana had a big bulge on the cover though so there is no mistaking it.
The 8 3/4 has a round type look to it. No bolts or anything on the back. Just the 10 bolts for the 3rd member.
If you get an 8 3/4 out of anything BUT an a-body, you need to have it cut down to A-body housing length. I'm pretty sure you have an A-body if I remember right.
I run 11s and have a 42 year old 8 3/4 with 42 year old stock axles and a stock 3.55 42 year old sure grip
8 1/4 - Fairly heavy duty, came in later 70 type cars, behind 360s and they hold
8 3/4 - Strongest. Very heavy duty. Pretty hard to break though it does happen. This is most recommended.
Dana 60 - Ultimate. If you have an all out race car and plan on racing an 11 sec 4 speed car, use this. Will most liekly never break.
the 7 1/4 and 8 1/4 and Dana have a rear cover on the back. The Dana had a big bulge on the cover though so there is no mistaking it.
The 8 3/4 has a round type look to it. No bolts or anything on the back. Just the 10 bolts for the 3rd member.
If you get an 8 3/4 out of anything BUT an a-body, you need to have it cut down to A-body housing length. I'm pretty sure you have an A-body if I remember right.
I run 11s and have a 42 year old 8 3/4 with 42 year old stock axles and a stock 3.55 42 year old sure grip
