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Old 07-09-2009, 11:44 AM   #1
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Default More lift and 37's, should i have my rear end re-geared if i have 3.31 gears now???

I have a 1995 F150 crewcab, it has 31x12,50 R15 on it stock.
i have 3.31 gears in the back, i tend on puttin 35x12,50 on it for now untill i can put 37's, with a 3'' body lift and 6'' in the front and 4'' in the back
but right now my rear end is shot, so i was thinkin is it worth buying the same rear end with 3.31 gears or get mine re-geared so it could push the lift and 37's...?

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Old 07-09-2009, 11:56 AM   #2
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If you're planning for the 37s and getting a new rear end anyway, you should get something beefy like a dana 60 with 4.56 or larger gears. Might be a little high revving with the 35s, but you're planning for later and redoing a rear end isn't fun. My opinion.
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Old 07-09-2009, 02:55 PM   #3
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Ditto. Definitely go with lower gears. My truck has 4.10's but I seriously wish the previous owner had went with 4.56's. Especially if I step up to 37s.
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Old 07-10-2009, 08:10 PM   #4
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i thought 4.56 gears won't fit in the carriers on the older fords?
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Old 07-10-2009, 08:53 PM   #5
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Probably true abt. the 4.56 not fitting in the older carrier. I'm not sure what the max size for specific carriers is. I was throwing the dana 60 out b/c of how beefy its axles are, which is worth considering with 37s.
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Old 07-10-2009, 10:10 PM   #6
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im lookin at movin up to 37s also and i was plannin on puttin in either 4.88 or 5.13s it will be a dog with the gears you have in there now
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Old 07-17-2009, 12:40 AM   #7
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After a 4:10, you need to change the carrier. I had to change mine when I went with 4:88's...
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Old 07-17-2009, 02:18 AM   #8
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Quote:
Originally Posted by Etdesign View Post
After a 4:10, you need to change the carrier. I had to change mine when I went with 4:88's...
This will not be a problem for the rear if you are switching to a locker type carrier as you can specify the gear range when ordering, the front is the same way if you switch carriers. The extra cost of a Detroit locker or similar limited slips are not much more than open carriers for the shorter legs.
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Old 07-17-2009, 12:23 PM   #9
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With mine, I didn't get a locker setup...
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