rear end size

68302 · 11-22-2001, 10:11 AM

I have a 68 mustang w/ 302 and 3 speed automatic. Iwas curious of how i could determine what size rear end i have and what type of differential. I plan on gettin some gears soon.

Gearhead999 · 11-22-2001, 11:05 AM

My 68 Mustang 289, C-4 had a 8 inch rear at 3.00 ratio.

Get the axle number off the drivers door ID plate. Then we can figure out what you have.

The 8 and 9 inch look very similar. Rule of thumb. If you can put a socket on the lower pumkin bolt it's a 8 inch. If you use open end only it's a 9 inch.

68302 · 11-22-2001, 01:19 PM

i looked at the plate and it is a #2

Gearhead999 · 11-22-2001, 02:02 PM

Code #2==2.79 ratio 8 inch

www.mustangdecoder.com

You can go to this site and have all the numbers on you door decoded.

mustangman65_79 · 11-23-2001, 08:00 AM

well, I was going to post a simular post like this one, but...
I have 2.80:1 gears in my car, and was wondering if I should change them, nothing too low becuase I still need freeway use. The tires I got now are 185/70 r14, soon, I hope, to have a 15 X 8 wheel. Also, I need to change the rear tires soon(too much fun with burnouts) I think the next tires are 215/70 r14. Bigger rear tires cause I have it lifted and plan to lift it more with 3" lift springs. I like the lifted look of musuale cars.

11-22-2001, 10:11 AM	#1
68302 Registered Member Join Date: Oct 2001 Location: Panama City, Florida Posts: 14	rear end size I have a 68 mustang w/ 302 and 3 speed automatic. Iwas curious of how i could determine what size rear end i have and what type of differential. I plan on gettin some gears soon.

11-22-2001, 01:19 PM	#3
68302 Registered Member Join Date: Oct 2001 Location: Panama City, Florida Posts: 14	axle number i looked at the plate and it is a #2

11-22-2001, 02:02 PM	#4
Gearhead999 Registered Member Join Date: Sep 1998 Location: Oviedo, FL Posts: 992	Code #2==2.79 ratio 8 inch www.mustangdecoder.com You can go to this site and have all the numbers on you door decoded. __________________ "Support our Troops" Dave 1968 Cougar 2004 Thunderbird 2007 F150 Harley-Davidson, SuperCrew 1986 LTD 1997 Ranger 1992 Honda Civic

11-23-2001, 08:00 AM	#5
mustangman65_79 My poor 79 RIP Join Date: Oct 2001 Location: Suisun City, Posts: 2,320	well, I was going to post a simular post like this one, but... I have 2.80:1 gears in my car, and was wondering if I should change them, nothing too low becuase I still need freeway use. The tires I got now are 185/70 r14, soon, I hope, to have a 15 X 8 wheel. Also, I need to change the rear tires soon(too much fun with burnouts) I think the next tires are 215/70 r14. Bigger rear tires cause I have it lifted and plan to lift it more with 3" lift springs. I like the lifted look of musuale cars. __________________ '84 mustang GT turbo '85 LTD '89 Camaro Irocz z28 '94 Lightning '96 Trans am

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
What size rear end?	titanium92	Windsor Power	5	08-23-2004 04:51 PM
Rear end size?	Nixon1	Windsor Power	16	02-22-2003 03:15 PM
Rear tire size	lskarritt	Classic Mustangs	0	01-20-2003 07:42 PM
295 Rear rubber? What size rim/tire you run?	5P0INT0	Windsor Power	1	06-16-2002 06:48 AM
Rear tire size	Mopar1	Windsor Power	11	04-03-2002 01:00 AM

11-22-2001, 11:05 AM	#2
Gearhead999 Registered Member Join Date: Sep 1998 Location: Oviedo, FL Posts: 992	My 68 Mustang 289, C-4 had a 8 inch rear at 3.00 ratio. Get the axle number off the drivers door ID plate. Then we can figure out what you have. The 8 and 9 inch look very similar. Rule of thumb. If you can put a socket on the lower pumkin bolt it's a 8 inch. If you use open end only it's a 9 inch. __________________ "Support our Troops" Dave 1968 Cougar 2004 Thunderbird 2007 F150 Harley-Davidson, SuperCrew 1986 LTD 1997 Ranger 1992 Honda Civic