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post #1 of 8 (permalink) Old 08-08-2009, 05:37 AM Thread Starter
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gearing question

i was wondering what the gears are in my rearend. at 55 mph the rpms are at 1900. i looked for a tag on the pumpkin but there wasnt one?

95 PSD, 5 speed manual,
ts 6 position chip,S&B intake,
6" mitre stack

Not fast and will never be fast
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post #2 of 8 (permalink) Old 08-08-2009, 07:07 AM
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Re: gearing question

I would say 4.10 unless you have huge tires.

1995 Ford F-250 7.3 (Sold)
1998 Nissan Maxima 3.0
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post #3 of 8 (permalink) Old 08-08-2009, 07:13 AM Thread Starter
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Re: gearing question

nope factory size tires. thanks

95 PSD, 5 speed manual,
ts 6 position chip,S&B intake,
6" mitre stack

Not fast and will never be fast
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post #4 of 8 (permalink) Old 08-08-2009, 02:01 PM
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Re: gearing question

Take a look at the VIN tag on the door frame, there should also be an axle code listed toward the bottom of the tag.


Axle code 35 is 4.10 open diff 6250# rated axle
Axle code 39 is 3.55 open diff 6250# rated axle
Axle code C5 is 4.10 limited slip 6250# rated axle
Axle code C9 is 3.55 limited slip 6250# rated axle

Axle code 45 is 4.10 open diff 7400# rated axle
Axle code 49 is 3.55 open diff 7400# rated axle
Axle code D5 is 4.10 limited diff 7400# rated axle

Axle code 65 is 4.10 open diff 8250# rated axle
Axle code 69 is 3.55 open diff 8250# rated axle
Axle code F5 is 4.10 limited slip 8250# rated axle

Axle code W5 is 4.00 open diff 8250# rated axle

If it is a 4x4 and there is a third digit 2 that means the front axle is limited slip

Dave / Believer45

1995 F250 'Stroke 4x2 5 spd long bed, Edge Evolution CTR, homebuilt
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post #5 of 8 (permalink) Old 08-08-2009, 08:04 PM
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Re: gearing question

Great mine is a 39. Got the truck in April, this winter should be interesting with an open diff...

1995 Ford F-250 7.3 (Sold)
1998 Nissan Maxima 3.0
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post #6 of 8 (permalink) Old 08-10-2009, 07:38 AM
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Re: gearing question

Quote:
Originally Posted by ADubDiesel View Post
Great mine is a 39. Got the truck in April, this winter should be interesting with an open diff...
Where are you located? I have had mine (3.55 open diff as well with a 5 speed) since Sept 2000 - in Cincinnati we get some winter weather but not that much. It has been my experience that it is how you drive a lot more than what you drive. We have a 200'+ driveway that has not been cleared since we moved to Cincinnati in 1986.

I have been stuck in mud in the pasture a couple times but never in snow.

Dave / Believer45

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post #7 of 8 (permalink) Old 08-13-2009, 06:42 AM
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Re: gearing question

Quote:
Originally Posted by Believer45 View Post
Where are you located? I have had mine (3.55 open diff as well with a 5 speed) since Sept 2000 - in Cincinnati we get some winter weather but not that much. It has been my experience that it is how you drive a lot more than what you drive. We have a 200'+ driveway that has not been cleared since we moved to Cincinnati in 1986.

I have been stuck in mud in the pasture a couple times but never in snow.

Dave / Believer45
I'm in WA. Eastern WA for school and we get pretty harsh winters. Western WA where I'm from, gets a lot of rain and very little snow...

1995 Ford F-250 7.3 (Sold)
1998 Nissan Maxima 3.0
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post #8 of 8 (permalink) Old 08-13-2009, 06:52 AM
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Re: gearing question

i have 3.55s and a open diff too, its all in how you drive it. im interested in how it will drive now that i have a chip. i did take my jeep down a road that goes through 2 farm fields to rescue a jeep once, only way i knew i was on the road was a few markers. snow was up to the bumper, i remember opening the door and pushing snow.

02 f250
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