8” Ford ring and pinion ratios
- Thread starter ahshoe
- Start date
55blacktie
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Re: 8” Ford ring and pinion ratios
If you want to know what new parts are currently available, just go to Summit Racing and search Ford 8" ring and pinion gears. My wife's cousin's husband has 3.50 gears in his 64 1/2 Mustang Convertible/w C4 transmission. There are times when he wishes he had retained the OEM gears for the highway, probably 3.00.
If you want to know what new parts are currently available, just go to Summit Racing and search Ford 8" ring and pinion gears. My wife's cousin's husband has 3.50 gears in his 64 1/2 Mustang Convertible/w C4 transmission. There are times when he wishes he had retained the OEM gears for the highway, probably 3.00.
55blacktie
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Re: 8” Ford ring and pinion ratios
mustangattitude.com/mustang/1965dtrearend.shtml
mustangattitude.com/mustang/1965dtrearend.shtml
55blacktie
BANNED
Re: 8” Ford ring and pinion ratios
Keep in mind that the mustangattitude list may include ratios for the 7 1/4" rear axle used on 6-cylinder car, the 9" used on K-code HP 289, as well as those for the 8". I think the 3.00 is the most common for the 8".
Keep in mind that the mustangattitude list may include ratios for the 7 1/4" rear axle used on 6-cylinder car, the 9" used on K-code HP 289, as well as those for the 8". I think the 3.00 is the most common for the 8".
Ford Freak
Well-known member
Re: 8” Ford ring and pinion ratios
I have 2:75's in my stock Falcon Sprint . Like them a lot on the highway, & decent takeoff acceleration .
I have 2:75's in my stock Falcon Sprint . Like them a lot on the highway, & decent takeoff acceleration .
55blacktie
BANNED
Re: 8” Ford ring and pinion ratios
An 8" in good condition can handle up to 300 hp with no problem. There are no carrier breaks, so you can use any available ring and pinion gear ratios without changing carriers.
An 8" in good condition can handle up to 300 hp with no problem. There are no carrier breaks, so you can use any available ring and pinion gear ratios without changing carriers.
KULTULZ
Well-known member
Re: 8” Ford ring and pinion ratios
https://shiftsst.com/blog/post/how-to-determine-the-rear-axle-ratio.html
https://shiftsst.com/blog/post/how-to-determine-the-rear-axle-ratio.html
miker98038
Well-known member
Re: 8” Ford ring and pinion ratios
jwawhite, if it’s the original, it should be a Dana, probably a 44. The V8 o/d cars were either 3.7x, 3.9x, or 4:11’s IIRC. The 6 cylinder o/d were 4.27 or so. So you have to watch close turning and counting. Not a lot of spread. I’ve always thought the 3.9x or 4:11’s were good in o/d on the freeway. I had a 4:27 out of a wagon in a 312 bird. It was great when I was 18.
jwawhite, if it’s the original, it should be a Dana, probably a 44. The V8 o/d cars were either 3.7x, 3.9x, or 4:11’s IIRC. The 6 cylinder o/d were 4.27 or so. So you have to watch close turning and counting. Not a lot of spread. I’ve always thought the 3.9x or 4:11’s were good in o/d on the freeway. I had a 4:27 out of a wagon in a 312 bird. It was great when I was 18.