8.8 Swap Parts?

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Gozer442

Master Mechanic
Aug 9, 2016
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Well, I'm down the rabbit hole and adding Ford parts to my Cutlass. This weekend, I picked up a 90's Fox body rear differential complete with 373 gears, all the brake hardware, and lines for $150. I'm having the 4 lug axles re-drilled for the 5 lug 4.75", but I'm unsure of some of the correct parts I'll need.

1. What's the correct lug size/thread (part#) for GM?
2. What's the flange and adapter u-joint needed to connect to my GM drive shaft?
3. What's the correct distance from the 8.8 axle's center eyelet (upper mount), to the center of the stock eyelet mount point on a G-Body? I'd like to fab the upper control arms.
4. Are spherical upper bushings mandatory on the axle?

So far, that's my grocery list. I'm fully documenting this swap, with all the costs and part numbers to put together a complete FAQ for the forum.

Thanks.
 
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Longroof79

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I'm guessing M12 x 1.5mm, depending on what size studs are on the front. SAE would be 1/2 x 20 if I recall correctly.
 
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Gozer442

Master Mechanic
Aug 9, 2016
281
259
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Ontario, Canada
Thanks Jack. I might take on the stud change... looking for a drill press to use.
 

Longroof79

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You're welcome, buddy,
Good luck with your endeavor. It's worth it.
 
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oldsmobile joe

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Nov 12, 2015
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Longroof79

Rocket Powered Basset Hound
G-Body of the Month
Oct 14, 2008
12,156
9,762
113
Gainesville, Fl

oldsmobile joe

Royal Smart Person
Nov 12, 2015
2,067
3,053
113
mpls

Gozer442

Master Mechanic
Aug 9, 2016
281
259
63
Ontario, Canada
...
3. What's the correct distance from the 8.8 axle's center eyelet (upper mount), to the center of the stock eyelet mount point on a G-Body? I'd like to fab the upper control arms.
...

Does anyone have a measurement?
 
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