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Old Nov 17, 2009 | 03:56 PM
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Gearing Q's

Somewhere along my ridiculously long (and expensive) list of things to do to my truck is a lift and bigger tires. Right now I'm running 35's with 4.10 gears, and although I have to start out in 1st, its still pretty low with 35's. I'm curious if I run 37's if I'll need to regear or if there's anyone on here who runs tiresthat big who stayed with stock gearing. I do occasionally use my truck to tow, but rarely. Maybe once or twice a year. If I do need to regear, what do you reccommend and how much does it usually cost to do that?
 
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Old Nov 17, 2009 | 04:34 PM
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i would say you can run 37's with the 4.10's since you got a manual tranny. if you had an auto i would say do tranny work or regear.
 
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Old Nov 17, 2009 | 08:05 PM
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X2! I don't mean to ask a dumb question, but are you sure you have 4.10's? You should be able to start out in 2nd with 35's. I have 265/70R16's which I believe are 33's and I do not need 1st gear unless I am hooked up to something or headed up a steep hill from a stand still.
 
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Old Nov 17, 2009 | 08:48 PM
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I only use 1st gear when I am hooked to my trailer...
 
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Old Nov 17, 2009 | 09:48 PM
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I'm about 95% sure I have 4.10's... I can start out in 2nd but it's kinda sluggish. Won't do it uphill without a little finessing of the clutch. I'll have to double check in the morning... where do I look for the gear ratio?

EDIT: NM I checked. They're 4.11 limited slip. I'm sure once I put my stage 1's in 2nd won't be a problem unitl I go to 37's (or bigger?)
 
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Old Nov 17, 2009 | 10:12 PM
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i run 36 12.5 16.5's on my truck with 4.10's and an automatic. no issues on my end
 
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Old Nov 17, 2009 | 11:09 PM
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Once you have the 37's you may need to start in 1st gear due to the change of the final drive ratio.
 
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Old Nov 18, 2009 | 09:19 PM
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if i recall 37's on 4.10 gears is like stock tires on 3.31's
 
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Old Nov 19, 2009 | 01:39 AM
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I think 37's would work out well with 1st gear. Towing will probably suffer, but a lifted truck probably isn't the best tow rig anyways. Related, kinda-- my syncros are worn out pretty bad... would it be cheaper to have the tranny rebuilt or to replace it? I was thinking maybe going to a 6 speed if that conversion is possible (or if it would be of any advantage). I just figure more gears can't hurt anything. Any thoughts?
 
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Old Nov 19, 2009 | 06:55 AM
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I don't tow a whole lot, but I have 37's and 3.55's. I can still start off in 2nd, but usually use 1st. Yes, the ZF6 conversion is possible, but there's a fair bit involved. I just read a thread about that last week. Don't remember if it was here or not though.... I suppose what a rebuild would cost...
 
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Old Nov 19, 2009 | 10:42 PM
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maybe this will help.
4Lo.com :: Gear Ratio & Tire Size Chart
 
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Old Nov 20, 2009 | 08:40 AM
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Good stuff oversize. reps sent.
 
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Old Nov 20, 2009 | 08:41 AM
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The rep god's say no this time......
 
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Old Jul 20, 2010 | 11:19 PM
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410 or 430

i have a 2000 7.3 w/38 inch tire,6 spd manual.super chip.5 inch exaust 430 gear.highway driving and towing are good.but id rather hav the 410 for more pep crusin around town
 
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Old Jul 20, 2010 | 11:34 PM
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38 inch tires 6 spd manual 7.3 dsl. i never use 1st gear unless im hooked to somethin reaaally hevy
 
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