patioman

Hello All,

I am restoring a Ford 1949 F1 Pickup. I have dropped a 302CI engine & AOD transmission from a 1985 Lincoln Continental into it. I have also installed a rear end from a Ford Granada. The rear end tag reads:

WER V 5MC
2 75 8 7 575B

I'm assuming the gear ratio is 2.75:1. Is the ring gear an 8" or a 8.7"?
Also I am uncertain of the year of build. I believe with an automatic overdrive transmission, I need to consider swapping the gears for a 3.73 or 4.11 ratio.

Any thoughts?
Thanks

jwko

Hope this helps

Ford 7.5 Years Used on Granada: (1981 - 1982)
10 bolt rear cover with 7.5" ring gear. Has c/clip axles with 28 splines.

Ford 8.0 Years Used on Granada: (1975 - 1979)
Drop out style rear end with 8" ring gear. Has removable pinion support on the front. Uses 28 spline axles.

Ford 9.0 Years Used on Granada: (1975 - 1980)
Drop out style rear with 9" ring gear. Available in both 28 and 31 spline. Has removable pinion support.

patioman

Thanks JWKO,

Since I'm not sure of the year of the vehicle, I was hoping to pin it down from the info on the tag. You mentioned a 10 bolt year for the 7.5". Is the 7.5" the only year to have the bolt on rear cover? I have a 10 bolt rear cover that is basically square with rounded corners.

Thanks....

jwko

According to the site I used for the info, the 10 bolt was only used in 81-82.

Randy's Ring & Pinion. The Differential Experts. Auto Parts & Services.

Steve83

This is the standard tag layout from the '80s-up.


There are many axles with a bolt-on rear cover, including the VERY common 8.8" & several Danas.

Gear selection isn't based only on the trans; you also have to consider the tire size & the engine RPM you want at a particular speed. So it involves everything from the engine to the ground. There are several gear calculators throughout the web - do some Googling.

__________________
Walk softly & carry a BIG SIX ! ! !

. . . '99 CV RIP

patioman

Thanks for all your help.....

I am going to assume this rear has a 8.7" ring gear w/ a 2.75 ratio. It was maufactured in July 5, 1985. Is this rear what they call the 9" w/ a smaller rear gear?

As far as changing the gears, I will wait till I have it on the road to decide.

Thanks.....

patioman

Change that year to 1975. Orielly's doesn't have a 1985 Granada on their list. They do show a 1975 Granada and they also show it to have a 8.7 rear.