rear diff. info. please

rokdog13 · 02-05-2001, 08:02 PM

have 82' merc. capri with 7.5" posi and drum brakes. need info and opinions. not building a racer, 275 horse or so, do i even need to swap it out for a 8.8"? what about disc brake conversions? what cars out there would be a direct bolt on or minor mod.?
any sources of info or fox body specific shops in the northwest anybody is aware of?
please help, reply here or rokdog13@hotmail.com

93CobraR · 02-05-2001, 08:06 PM

I would have put this in the Windsor Power if I were you. Anyway, theres a chance that the 7.5 will hold up forever or might break leaving the line at the strip. I would upgrade it to a 8.8 in fear that I would snap an axel.

------------------
87 GT, 4 inch cowl hood,17x9 Cobra R's/255/45's,GT-40 heads,long tubes headers,h-pipe,Flows,BBK cold air, Mass air,70mm MAF, 1.7's, 1" spacer,underdrive pulleys,Pro 5.0, King Cobra, Adj. fuel Reg., Lakewood Lift Bars,50/50's,subframes, 4.10's.
Best time 13.012
Best MPH 104
Best 60' 1.816

Visit my site at:
http://www.geocities.com/cobrar93_2000/MyPage.html

Bob · 02-06-2001, 06:27 PM

The 7.5's are stronger than most think, and should handle 275 horsepower as long as you don't bolt on a pair of real sticky tires or slicks. Although I swaped in an 8.8 about a year ago, I put a set of 3.45 gears in my 7.5 and ran it for years. It's still in one piece out in the garage. You can also bolt a girdle on to the 7.5 and strengthen it's weakest part...the bearing caps.

------------------
1985 Mustang GT

'85 GT 13.20 @ 105.8 / '72 Mach1
Long list...check website!!
My Website

Mr 5 0 · 02-07-2001, 08:39 PM

Moved to the Windsor Power forum.

NOS_Notch · 02-07-2001, 10:23 PM

Try to find a truck 8.8....
The towing package could be 3.55, 3.73, or 4.10
get the right axle and gear for cheap

------------------
4.10's,long tubes & 75 shot...Goes 12.50's
Check it out at http://www.burnouts.webprovider.com

02-05-2001, 08:02 PM	#1
rokdog13 Registered Member Join Date: Feb 2001 Location: Aberdeen, WA 98520 U.S.A. Posts: 7	rear diff. info. please have 82' merc. capri with 7.5" posi and drum brakes. need info and opinions. not building a racer, 275 horse or so, do i even need to swap it out for a 8.8"? what about disc brake conversions? what cars out there would be a direct bolt on or minor mod.? any sources of info or fox body specific shops in the northwest anybody is aware of? please help, reply here or rokdog13@hotmail.com

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02-05-2001, 08:06 PM	#2
93CobraR Registered Member Join Date: Oct 1999 Location: Cincinnati, Ohio Posts: 1,575	I would have put this in the Windsor Power if I were you. Anyway, theres a chance that the 7.5 will hold up forever or might break leaving the line at the strip. I would upgrade it to a 8.8 in fear that I would snap an axel. ------------------ 87 GT, 4 inch cowl hood,17x9 Cobra R's/255/45's,GT-40 heads,long tubes headers,h-pipe,Flows,BBK cold air, Mass air,70mm MAF, 1.7's, 1" spacer,underdrive pulleys,Pro 5.0, King Cobra, Adj. fuel Reg., Lakewood Lift Bars,50/50's,subframes, 4.10's. Best time 13.012 Best MPH 104 Best 60' 1.816 Visit my site at: http://www.geocities.com/cobrar93_2000/MyPage.html

02-06-2001, 06:27 PM	#3
Bob "Old School Gearhead" Join Date: Oct 1998 Location: Peru, Illinois Posts: 617	The 7.5's are stronger than most think, and should handle 275 horsepower as long as you don't bolt on a pair of real sticky tires or slicks. Although I swaped in an 8.8 about a year ago, I put a set of 3.45 gears in my 7.5 and ran it for years. It's still in one piece out in the garage. You can also bolt a girdle on to the 7.5 and strengthen it's weakest part...the bearing caps. ------------------ 1985 Mustang GT '85 GT 13.20 @ 105.8 / '72 Mach1 Long list...check website!! My Website

02-07-2001, 08:39 PM	#4
Mr 5 0 Conservative Individualist Join Date: May 1997 Location: Wherever I need to be Posts: 7,487	Moved to the Windsor Power forum.

02-07-2001, 10:23 PM	#5
NOS_Notch Registered Member Join Date: Sep 2000 Location: Fresno,CA. USA Posts: 384	Try to find a truck 8.8.... The towing package could be 3.55, 3.73, or 4.10 get the right axle and gear for cheap ------------------ 4.10's,long tubes & 75 shot...Goes 12.50's Check it out at http://www.burnouts.webprovider.com