8 3/4 Whats it out of?

[plumkrazee70]

I found an 8 3/4 that has the following measurements:

Perch to perch (center) 43"
30.5" axles
Axle housing (no backing plates or brakes) Just under 59"

I looked up the 8.75 chart on moparts and it appears to be c body length with a body perches? The welds look factory to me.

A friend of mine wants it for his 71 duster

Thoughts?

 

[Dana67Dart]

5x4 sbp or 5x4.5 lbp?
Are perches ontop or under the housing?

 

[plumkrazee70]

5x4 sbp or 5x4.5 lbp?
Are perches ontop or under the housing?

Its 5x4.5

Perchs are on top, if I'm looking at this pic right.

 

[Dana67Dart]

Perches on top would be truck.
Breather location would be after about 72

 

[plumkrazee70]

Perches on top would be truck

Ok. So to use this in a duster, he would have to relocate the perches and shorten the housing, get new axles, etc?

 

[Dana67Dart]

If the price is right, housing can be narrowed and perches relocated. Akles might be able to be shortened, BUT most likly not due to necking down rihht after the spline
.

 

[plumkrazee70]

If the price is right, housing can be narrowed and perches relocated. Akles might be able to be shortened, BUT most likly not due to necking down rihht after the spline
.

He wants 250 for the whole thing. Its a 741 case, unsure of gear ratio.

 

[Dana67Dart]

If gear ratio is what you want, Good price for even only the center. BUT 741 only has 2 avalible NEW gear ratios 3:55 and 3:73 (or there abouts) so use caution. If locking center especially clutch type even beter price. Looks like backing plstes are there, about 50 to 100 value there. OE a body housings are in the 500 to 1000 range

 

[plumkrazee70]

If gear ratio is what you want, Good price for even only the center. BUT 741 only has 2 avalible NEW gear ratios 3:55 and 3:73 (or there abouts) so use caution. If locking center especially clutch type even beter price

Its not for me, it's for a friend. Its a non sure grip center. He is putting a 440 in the duster and will most likely rebuild the center.

Thanks for your help.

 

[451Cuda]

It's basically a core truck housing (~$100), backing plates (~$50), and a core 741 case (~$50). If it has the ratio he wants to use, then decent deal at $250. If not, it's a bit overpriced.

 

[plumkrazee70]

It's basically a core truck housing (~$100), backing plates (~$50), and a core 741 case (~$50). If it has the ratio he wants to use, then decent deal at $250. If not, it's a bit overpriced.

We could probably get it cheaper.

 

[Dana67Dart]

Its a 741 case, unsure of gear ratio.

ratio is stamped on the side of the ring gear