Differential Swap Question

SurfaRiver · 06-16-2002, 07:43 PM

I've got a 79 5.0 Mustang that has a 7.5" Rear End and 2.47 gears down to 4 lug wheels. I wanna get like an 8.8 or 9" rear with a higher ratio and 5 lug wheels. What should I look for like around a junkyard or something? Are there kits on summit or anything? Any Help? Thanks

MiracleMax · 06-16-2002, 07:53 PM

Just get an 8.8 from an 87 up 5.0 car, its a bolt in and weighs a good bit less than a 9 inch (not to mention being about 4% more efficient)

LX5liter · 06-17-2002, 08:16 AM

The 86 5.0 cars had the 8.8 as well. I beleive the automatic cars had an optional 3.27:1 gear. Check the tag on the rearend, if it's still there.

06-16-2002, 07:43 PM	#1
SurfaRiver Registered Member Join Date: Mar 2002 Location: Ohio Posts: 54	Differential Swap Question I've got a 79 5.0 Mustang that has a 7.5" Rear End and 2.47 gears down to 4 lug wheels. I wanna get like an 8.8 or 9" rear with a higher ratio and 5 lug wheels. What should I look for like around a junkyard or something? Are there kits on summit or anything? Any Help? Thanks __________________ 1979 Mustang ... 12K Holley 600 CFM 4 bbl Edlebrock Performer RPM Comp Cam 8.8 Rear end with posi from 88 stang Next Projects AFR Heads Stroker Crankshaft and new Pistons T5 Runs 15.0 now, need more traction

06-16-2002, 07:53 PM	#2
MiracleMax Registered Member Join Date: Apr 1999 Location: Hayes, Va, USA Posts: 798	Just get an 8.8 from an 87 up 5.0 car, its a bolt in and weighs a good bit less than a 9 inch (not to mention being about 4% more efficient) __________________ 2002 5M GT (99% stock) 1991 5M LX (30% stock) patiently awaiting my satin silver 07 Mach 1, and don't forget the shaker

06-17-2002, 08:16 AM	#3
LX5liter dude5l Join Date: May 2001 Location: Grande Prairie, Alberta, Canada Posts: 603	The 86 5.0 cars had the 8.8 as well. I beleive the automatic cars had an optional 3.27:1 gear. Check the tag on the rearend, if it's still there. __________________ Good luck! Brad R. 1992 L.X. 5.0 coupe MODS: A few little bolt ons New Best time ...11.60 @ 128 mph @ 2000+ ft altitude. Rice Haters Club member #39 Users rides #2542

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