The pumpkin loads in the front of the housing on the 8 inch. The 8.8 has a differential cover on the back side.
You also have to know the difference between the 7.5 and 9" because they are similar to the 8.8 and 8"
Ok no rear bolt on cover, thinking 8" now looking at SUM for gears, just a little lower than stock, any ideas?
It's all over google: how do u tell the diff between a 7.5 and 8.8 - MustangForums.com Visually Spotting the 9" and 8" Axle Housings
there were very few 8" rears that had gear ratios higher than 3.00. i believe that mustang II's were the best chance of finding a 3.45 ratio and a few even had limited slips also. i dont know how it is in texas, but here there are hardly any cars older than the 80's in the salvage yards here. you would do better to buy a rebuilt third member on e-bay with exactly what you want. even if you find a used diff in a salvage yard chances are it will need new bearings.
Looks like we have decided to use the good 8" in the car and buy ring an pinion from summit, any ideas on ratio, very little highway?
what is your intended use for the car? what is the rear tire hight? what transmission do you have? what rpm are you comfortable cruising at?
Ford didn't make a 7.5"...it was a 7.25". Before that it was 6.75" then a 7.0". Most manual shift 8" Fords from the mid 60's back were 3.25:1...Automatics got a 3.00:1
ford made a 7.5. its like the mini 8.8. it was in the first fox body platform cars that came out in the end of the 70s. they still use it in todays 6 cyl mustang and the rangers.
Thanks We just have fun with the car stop light to sunday brunch.LOL The tires in the back are P-35 R 14 60 Thansmission C-4 Comfortable rpm, im not sure guess i need to look at the tack more. just put in a cam and double roller timing chain but cant find the spec's right now, but remeber 2000 to 4500 rpm range on the cam. Stop light to stop light.
