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Unread 12-22-2013   #1 (permalink)
CrazyT35 is offline Rookie


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Default 66 Mustang coupe rear axle replacement?

I have a friend that's been helping me restore my vehicle. We are in the process of replacing rear suspension. When We took it apart we discovered I have an 8" 4 lug rear end axle that have been converted to a 5 lug and that the reason for the ridiculous spacers on the rear. He told me to go ahead and replace the axle to a 9". I'm new to all this so any input is appreciated.

Here are my questions??
- if I go to the pick and pull what vehicles would have the 9" axle I need?
-is this the best route to go?
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Unread 12-22-2013   #2 (permalink)
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The 8" that you have has lasted 50 years without breaking. 9" was used on big engine cars with 4bbls.
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Unread 12-22-2013   #3 (permalink)
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Quote:
Originally Posted by Yadkin View Post
The 8" that you have has lasted 50 years without breaking. 9" was used on big engine cars with 4bbls.
My fault should've been clearer. It has a 1969 302. I always heard that the 8" won't be able to handle the V8.
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Unread 12-22-2013   #4 (permalink)
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It depends on how the 302 has been built. In stock form you should be fine. Don't fix it if it ain't broke.
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Unread 12-22-2013   #5 (permalink)
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Quote:
Originally Posted by Yadkin View Post
It depends on how the 302 has been built. In stock form you should be fine. Don't fix it if it ain't broke.
302 is still stock. Your recommendation sounds good . After looking around for 9" axle it's out of my budget right now. Thanks!
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Unread 01-11-2014   #6 (permalink)
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Default 8 will work

The 8" rear end will hold up fine the only problem I have ever had with them is wrapping up under really hard acceleration but a pinion snubber will solve that problem very nicely.
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Unread 01-11-2014   #7 (permalink)
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Quote:
Originally Posted by gamblingman21 View Post
The 8" rear end will hold up fine the only problem I have ever had with them is wrapping up under really hard acceleration but a pinion snubber will solve that problem very nicely.
I agree keep the 8" and go have some fun. I am going to run my 8" with 347 stroker run it until she gives up. Just a some advice you might want to change the seals and bearings. That is if you havent done so yet.
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