Rear end size
 

I have an 86 GT with AOD and am looking into 3:73 for it. How do I know what size the rear is?

I think you're asking whether you have an 8.8", 7.5" or possibly a 9" rear end http://www.mustangworks.com/msgboard/confused.gif

I thought the 86 cars had the 8.8", but I'm not sure I know the 87 GT's+ did. The V6's had the 7.5".

Guess we'll have to have an expert come in on this one.

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1995 Mustang GT

8.8 rear has flat sides on the cover, the 7.5 rear has a round cover, the 9" is not found in the fox body unless someone has put it in, and it has a removable center section.


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93GT 398" 14:1,1080 Barry Grant Carb, nitrous fogger, c-4, Street Heats, 2" RCI long tubes, more.
79 notch 306, 5speed, carb, small plate nitrous.
88 turbo coupe 5 speed stock
91GT conv. 5.0 5speed, 3.73, and the normal bolt on stuff, just added to herd a sweet 86,SVO,5speed,306,msd,650dp,bbk,autometer,ect.
91 f-150 4x4 tow truck

I have a write up on the differences on my sight. www.flemworld.com. Look under How To's>>85 How To's and then "7.5 and 8.8 Differences"

Mike

If you look at the diff. pan the 7.5" will be wider than it is tall. A 8.8" will be taller than it is wide.

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82 Mercury Capri 302, Comp. Cams, Tremec 3550, 3.73's, 12.8@106 N/A
Kevin's Capri
Kevin's Mustang

1986 GT= 8.8 rear end.

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1989 GT, 3:55's, full exhaust, 4 in. hood, Pro 5.0, Have many other parts 4 sale. All parts for sale now.

2000 Camaro SS-A4 =P

1989 Chevy S-10, EX. Cab-383(500+hp on motor), trick flow heads, trick flow pistons, etc... autometer phantom gauges, "built" 700R4, roll cage, lexan back window, corbeau seats, R.H.S. 5 harnesses, Fuel cell, convo pro wheels, 15x14's with 29x18.5 M/T'S on back, 15x4's on front, nitrous, and so much more!

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