Rear ends? And I don't mean the pretty kind.

[WORTH]

Gentlemen, I'm running out of sources from parts I know so I'm widening my search. I've never played with Fox body stangs, so this is just a crap shoot. I need a replacement rear end for a 1963 Falcon I have. It is a very light POS and NG. It is 56.75" long, hub to hub, and has a 4-4.5 bolt pattern. I was trying to keep it mostly original so, I'd like to stick with that bolt pattern. Does the Fox body have anything to offer? What is the bolt pattern, and how long is it threw the years ? Also what rear do they use? 8.8?

 

[limp]

QPF9LeafHA-QP Custom Built Leaf Spring 9 Inch Housing & Axle

www.quickperformance.com

 

[limp]

QPF9BAREHA-QP Bare 9 Inch Housing & Axle Package

www.quickperformance.com

 

[AeroCoupe]

All 79-85 cars and 86-93 four cylinder cars have 7.5 rear ends.
86-93 V8 cars have the 8.8

https://lmr.com/products/mustang-8-8-rear-end-differences

 

[WORTH]

QPF9LeafHA-QP Custom Built Leaf Spring 9 Inch Housing & Axle

www.quickperformance.com

Limp, have you used these guys? There prices are very good. I actually need another axle for my '55 T-bird build as well, but wont decide on the gears until after I drive it. I'm swapping in a 4 speed wide ratio Ford trans.

 

[Noobz347]

Limp, have you used these guys? There prices are very good. I actually need another axle for my '55 T-bird build as well, but wont decide on the gears until after I drive it. I'm swapping in a 4 speed wide ratio Ford trans.

What is is powered by?

 

[limp]

Limp, have you used these guys? There prices are very good. I actually need another axle for my '55 T-bird build as well, but wont decide on the gears until after I drive it. I'm swapping in a 4 speed wide ratio Ford trans.

Yes I have and I will again.. If you need help they are there.... Good people.
Check out their website... Quickperformance.com

 

[WORTH]

Ya , I went threw their website, just nice to hear from some-one that have actually used them. Thanx.

 

[EP429]

Gentlemen, I'm running out of sources from parts I know so I'm widening my search. I've never played with Fox body stangs, so this is just a crap shoot. I need a replacement rear end for a 1963 Falcon I have. It is a very light POS and NG. It is 56.75" long, hub to hub, and has a 4-4.5 bolt pattern. I was trying to keep it mostly original so, I'd like to stick with that bolt pattern. Does the Fox body have anything to offer? What is the bolt pattern, and how long is it threw the years ? Also what rear do they use? 8.8?

There's something familiar about that beard....
I transplanted a Fox 8.8 into my 68 a few years back after I kind of broke my 8 inch. Fox body rears are ~59.25" wide if I recall, putting each wheel 1.25" closer to the quarter panel given your dimensions. Not sure if the Falcon even has that much clearance, but if stance is important to the original recipe you want, it'll show. You can always shorten the tubes & get shorter axles, but that's a whole extra can of worms to crack open. Aside from that the 8.8 is lighter than the 9 inch and offers lower parasitic power loss. With a little grinder action for bracket removal & welding on new perches, it's a fairly painless swap into a vintage platform.

 

[AeroCoupe]

If you narrow it just put 9" ends on it and move on. No more c-clips and all kinds of disc brake options for those ends.

 

[rednotch]

The 4x4.5 bolt pattern makes it near impossible without custom axles and brakes. Fox body is 4x4.25 most with falcon swaps will cut down explorer 8.8's and swap to 5 lug, shorten the driver side tube and run two passenger side axles, the explorer housing is offset.

 

[EP429]

The 4x4.5 bolt pattern makes it near impossible without custom axles and brakes. Fox body is 4x4.25 most with falcon swaps will cut down explorer 8.8's and swap to 5 lug, shorten the driver side tube and run two passenger side axles, the explorer housing is offset.

Given the the mostly original + same bolt pattern goal, it's going to require a bit of cutting & aftermarket axles regardless of the donor 8.8 source, unfortunately. Very doable project, just a little more complicated in keeping the original bolt pattern. Any decent machine or driveline shop should be able to drill out the shorter aftermarket axles and existing drums to accommodate new studs in 4x4.5 pattern.

 

[limp]

Given the the mostly original + same bolt pattern goal, it's going to require a bit of cutting & aftermarket axles regardless of the donor 8.8 source, unfortunately. Very doable project, just a little more complicated in keeping the original bolt pattern. Any decent machine or driveline shop should be able to drill out the shorter aftermarket axles and existing drums to accommodate new studs in 4x4.5 pattern.

I used this drum kit.. https://www.quickperformance.com/Ford-9-Inch-Drum-brake-kit_p_4031.html

 

[limp]

If you narrow it just put 9" ends on it and move on. No more c-clips and all kinds of disc brake options for those ends.

 

[EP429]

I used this drum kit.. https://www.quickperformance.com/Ford-9-Inch-Drum-brake-kit_p_4031.html

The OP is looking to adapt to a 4-lug & older 4x4.5 bolt pattern. Throws a wrench into the usual simple fixes.

** I missed the "None of these" option, this could probably work.

 

[Noobz347]

It doesn't seem like it's too awful difficult to order axles any way you want them these days.

There might be some wait time but I don't think it's much more expensive than ordering pre-made.

 

[limp]

The OP is looking to adapt to a 4-lug & older 4x4.5 bolt pattern. Throws a wrench into the usual simple fixes.

** I missed the "None of these" option, this could probably work.

The drums are drilled for multiple patterns.. Not sure for a 4 lug, but a call to Quick performance would find out..