Rear end question

[gregaba]

I am finally able to get back to work on my 63 Galaxie.
I though I had a 9 inch rear and ordered a new 440 ratio R&P, Strang case, bearings and gaskets.
However when I removed the tab it says it is a 3.25 ratio 8 3/4 inch carrier.
My question is will the 9 inch carrier fit in a case with a stock 8 3/4 inch carrier?
Thanks
Greg

[pbf777]

     Assuming the "8-3/4" you have is the Ford unit which happens to 'look' just like a "9-inch", and since your replacing the entire "pig", then "yes", it should bolt into the axle housing (just as the "9-3/8" will,....... sort of).  Earlier examples were referred to as the 8-3/4's as the ring gear isn't 9" in diameter, but later that changed/upgraded and the more common moniker was adopted.   

     Do note that those earlier housings and axles are generally considered some of the weaker examples in the 9-inch family, so if your pumping-up the power any great sum, you might want to consider this also.   

     Scott.

[gregaba]

Thanks Scott
I was afraid of that. I will be putting out some HP but not a lot compared to what guys are building now.
I guess I had better break down and start looking at a new housing.
If any one need a 63 Galaxie complete rear with a one leg 3.25 gear and don't mind the drive to Oklahoma I have one for sale.
Thanks
Greg

[e philpott]

Totally read your question wrong, I shouldn't post on pain pills from a hernia surgery yesterday 

[gregaba]

No.
The 8 3/4 unit was the factory rear in the 63 Galaxie. I was confused and though it was a 8 inch because I had forgotten that Ford called the 9 inch a 8 3/4 inch back then.
I haven't been able to work on my stuff for a while and am just now where I can spend some time on them.
Hopefully I can get the 428 and 6R80 tranny mounted in it this month, then paint,interior ,etc .
Greg

[MeanGene]

Not easy to find these days, but the rearend from a 66 TBird with a 428 fits right under that Galaxie, and has 31 spline axles. I have had one in my 406 car since 1977- cost me $60. The big brakes fit right on the Bird housing, but if you car has the standard size brakes, you'd want to get the Bird brakes with the housing

[gregaba]

Thanks for that info. I happen to have a 66 t-bird in my storage lot. I was getting ready to finally get rid of it but am glad I keep putting it off.
I have the new carrier parts to assembly when I get to it and will  run 444 gears in the rear ,then I can just exchange the 2  out.
This will save me a lot of time and cost.
Greg

[MeanGene]

The 390 66 Bird unit will not have the 31 spline axles

[gregaba]

Won't need them as I will order a new set from Strange.
I plan on going out to the pasture this weekend and check out my old parts cars as I have forgot exactly what I have out there.
Greg