Posted By: AeroMonte
Truck 8 3/4 worth saving? - 08/09/10 12:45 PM
I'm parting a 72 D100 2wd. The truck has an 8 3/4 rear and I'm wondering if I should save the entire rearend or just pull the axles and center chunk. What do you guys think?
Truck 8 3/4 worth saving?
Posted By: scratchnfotraction
Re: Truck 8 3/4 worth saving? - 08/09/10 01:18 PM
IMHO,yes save the whole thing,they dont make them any more
the axle are most likly canadates for a cut and respline,have a larger flange end with the 5 on 5 1/2"wbp so it can be redrilled for the 5 on 4 1/2" wbp
the housing is a good canadate to have narrowed also
spring perches are on top of axle tube,but are 43" centers same as an A-body(I have an A-body 8 3/4 in my truck,tucks 12" rims and 29x15x15 m/t right in there)
my 72 4x4 truck 8 3/4 had a 489 with a 3.91sg in it
I save every one I can get a hold of myself
the axle are most likly canadates for a cut and respline,have a larger flange end with the 5 on 5 1/2"wbp so it can be redrilled for the 5 on 4 1/2" wbp
the housing is a good canadate to have narrowed also
spring perches are on top of axle tube,but are 43" centers same as an A-body(I have an A-body 8 3/4 in my truck,tucks 12" rims and 29x15x15 m/t right in there)
my 72 4x4 truck 8 3/4 had a 489 with a 3.91sg in it
I save every one I can get a hold of myself
Posted By: MoparforLife
Re: Truck 8 3/4 worth saving? - 08/09/10 01:43 PM
Quote:
IMHO,yes save the whole thing,they dont make them any more
the axle are most likly canadates for a cut and respline,have a larger flange end with the 5 on 5 1/2"wbp so it can be redrilled for the 5 on 4 1/2" wbp
the housing is a good canadate to have narrowed also
spring perches are on top of axle tube,but are 43" centers same as an A-body(I have an A-body 8 3/4 in my truck,tucks 12" rims and 29x15x15 m/t right in there)
my 72 4x4 truck 8 3/4 had a 489 with a 3.91sg in it
I save every one I can get a hold of myself
72 2 wheel drive = 4.5 bolt circle.
Posted By: scratchnfotraction
Re: Truck 8 3/4 worth saving? - 08/09/10 02:29 PM
yes they have both wbp for trucks 
Posted By: RUNCHARGER
Re: Truck 8 3/4 worth saving? - 08/09/10 03:37 PM
I'd keep it. they make a great replacement for the weaker 9 1/4".
Sheldon
Sheldon
Posted By: Mopar_Country
Re: Truck 8 3/4 worth saving? - 08/09/10 06:29 PM
Keep it!
Posted By: bboogieart
Re: Truck 8 3/4 worth saving? - 08/09/10 09:17 PM
Quote:
yes they have both wbp for trucks
Yes they do but I thought it was different by year.
ie 72+4.5
82=5.5
No?
But to the original question. I try to keep whatever I can get these days. If you have room keep it. Someone will need it if you don't.
Posted By: 340SHORTY
Re: Truck 8 3/4 worth saving? - 08/09/10 10:39 PM
besides the 2 having the different bolt patterns the 65/71 is narrower than the 72/74.
Posted By: Soopernaut
Re: Truck 8 3/4 worth saving? - 08/10/10 07:35 PM
Quote:Quote:
yes they have both wbp for trucks
Yes they do but I thought it was different by year.
ie 72+4.5
82=5.5
No?
But to the original question. I try to keep whatever I can get these days. If you have room keep it. Someone will need it if you don't.
The 8.75 axle used in 4 wheel drive trucks from 1969 through 1974 had the 5x5.5 bolt pattern. The 2 wheel drive trucks had the 5x4.5 bolt pattern.
Posted By: scratchnfotraction
Re: Truck 8 3/4 worth saving? - 08/10/10 08:15 PM
the 2x trucks went 5x5.5 in 85 also on the 8 1/4-9 1/4 rear axles
so the 8 3/4 4x4 with the 5x5.5 is a good swap and still matches the stock rims
so the 8 3/4 4x4 with the 5x5.5 is a good swap and still matches the stock rims