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05-01-2021, 12:10 PM | #1 |
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Join Date: May 2010
Location: Eastern Iowa
Posts: 350
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8” Ford ring and pinion ratios
Looking for the different rear ratio available for a Ford 8” ring and pinion
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05-01-2021, 12:15 PM | #2 |
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Join Date: Aug 2020
Posts: 442
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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.
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05-01-2021, 12:21 PM | #3 |
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Re: 8” Ford ring and pinion ratios
mustangattitude.com/mustang/1965dtrearend.shtml
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05-01-2021, 04:53 PM | #4 |
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Location: Rathdrum Idaho
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Re: 8” Ford ring and pinion ratios
I know for sure factory 2.79---3.00----3.25----3.40---3.55. and probably 4.11. I'm sure there is something else in between 3.55 and 4.11.
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05-01-2021, 06:47 PM | #5 |
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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".
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05-02-2021, 07:40 AM | #6 |
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Re: 8” Ford ring and pinion ratios
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1952 Ford F1 1965 Ford Falcon Sprint 2007 Ford Mustang GT |
05-07-2021, 10:12 AM | #7 |
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Location: Battle Ground, WA
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Re: 8” Ford ring and pinion ratios
I have a Maverick 8" with 3.80 ratio aftermarket gears in my '32 Desoto. It's perfect with my overdrive transmission -- 2100 rpm at 70 mph.
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05-07-2021, 11:08 AM | #8 |
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Join Date: Aug 2020
Posts: 442
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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.
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05-15-2021, 05:37 PM | #9 |
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Re: 8” Ford ring and pinion ratios
It seems in my Wagon the gearing may be too low in OD.
How can I ascertain the gearing in mine w/o removing the driveshaft and pumpkin? |
05-15-2021, 06:51 PM | #10 | |
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Re: 8” Ford ring and pinion ratios
Quote:
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***** - WHY IS IT ... - ... that everything you buy in the grocery store is either wrapped in or contained in plastic but the government doesn't want you to carry it out in a plastic bag? WONDERING IN W(BY GOD)V ...
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05-16-2021, 12:19 AM | #11 |
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Location: Kent, WA. Tucson, AZ
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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.
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05-16-2021, 04:58 PM | #12 |
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Join Date: May 2010
Location: Eastern Iowa
Posts: 350
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Re: 8” Ford ring and pinion ratios
Looking for 8" 28 spline, open or trac loc 3.25
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