8.8 ford diff. vs. gm 8.5" diff
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Senior Member
Joined: Jul 2000
Posts: 541
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From: Indianapolis, IN USA
8.8 ford diff. vs. gm 8.5" diff
i work in a service related field that rebuilds, repairs & supplies service parts for "do it yourselfer's" who wish to rebuiild their own differentials.
I can testify that we see approx. 25-30 GM 8.5" diff's. to one 8.8 ford diff. most of the GM 8.50" that we see are out of chevy, gmc pick-ups, blazers & vans. most that we see are less than approx. 6 years old.
we don"t see many dodge diff's (9.25") either. we see alot of dana 60, 70 @ 80 models.
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1999 teal blue f150 s/c
4.6l, xlt, 3.55 L/S
Tow pkg., rhino liner, engine block heater & hard toneau cover. single c.d.
255/75 r16 Generals-owl
I can testify that we see approx. 25-30 GM 8.5" diff's. to one 8.8 ford diff. most of the GM 8.50" that we see are out of chevy, gmc pick-ups, blazers & vans. most that we see are less than approx. 6 years old.
we don"t see many dodge diff's (9.25") either. we see alot of dana 60, 70 @ 80 models.
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1999 teal blue f150 s/c
4.6l, xlt, 3.55 L/S
Tow pkg., rhino liner, engine block heater & hard toneau cover. single c.d.
255/75 r16 Generals-owl
Senior Member
Joined: May 2000
Posts: 4,761
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I don't know why all mfgrs don't use the 9" rear. That is what everyone trys to stuff under their cars at the track. I have 2) that are 30yrs old, and still kick ***.
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2000 F-150 XL,RC,LB,5.4,4R70W,3.55LS,
Class III tow/Payload #3/Convenience pkgs.,
4-wheel disc/ABS,Chestnut/Parchment 40/60,
Ford bedliner & gas/wheel/spare locks,
3" cold air box modification,Superchip,
Dynomax ultra-flow welded 3" cat-back.
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2000 F-150 XL,RC,LB,5.4,4R70W,3.55LS,
Class III tow/Payload #3/Convenience pkgs.,
4-wheel disc/ABS,Chestnut/Parchment 40/60,
Ford bedliner & gas/wheel/spare locks,
3" cold air box modification,Superchip,
Dynomax ultra-flow welded 3" cat-back.
Senior Member
Joined: May 2000
Posts: 4,761
Likes: 0
"Stock" is a relative term. Stock for my 2)Torino Cobras include: Nodular carrier, 31-spline, Detroit Lockers. 30 years of hopped up engines and no problems. Certainly hard to beat in a car axle. This is still the best thing Ford sells in their Motorsport catalog.
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2000 F-150 XL,RC,LB,5.4,4R70W,3.55LS,
Class III tow/Payload #3/Convenience pkgs.,
4-wheel disc/ABS,Chestnut/Parchment 40/60,
Ford bedliner & gas/wheel/spare locks,
3" cold air box modification,Superchip,
Dynomax ultra-flow welded 3" cat-back.
------------------
2000 F-150 XL,RC,LB,5.4,4R70W,3.55LS,
Class III tow/Payload #3/Convenience pkgs.,
4-wheel disc/ABS,Chestnut/Parchment 40/60,
Ford bedliner & gas/wheel/spare locks,
3" cold air box modification,Superchip,
Dynomax ultra-flow welded 3" cat-back.
Senior Member
Joined: Jul 1999
Posts: 188
Likes: 0
From: Alvin, Tx
The GM 8.5 is a piece of junk. I've got one in my Yukon and have had nothing but problems. Seals going out, yoke had to be replaced, differential bearings replaced. And now its making noise again... BTW, I don't drive off road, I don't tow a trailer, and I don't hot rod it.