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Post by cmfb87 on Nov 10, 2005 9:36:13 GMT -5
this is kinda a weird question but what would happin if you ran two different gears. as one set of gears in the front and a differnt set of gears in the back like 4.10 and 5.29?
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Post by DrumBum on Nov 10, 2005 10:01:07 GMT -5
bad things would happen if you put it in 4wd... if you had 4.10's in the front and 5.29's in the rear, your truck would try to spin the front tires faster than the back in any given gear/rpm... it would drag the back tires, and put tons of stress on your diffs/t-case/axles, and probably eventually grenade something... BUT, if you just put the 5.29's in the back, and NEVER put it in 4wd until you put matched gears in the front, it wouldn't be a problem.
side note, sometimes dedicated competition mud boggers run higher (numerically lower) gears in the front so that the front pulls more and they maintain more steering... but i don't think they use as big of difference as 4.10-5.29
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Post by 94cnytoy on Nov 10, 2005 10:23:02 GMT -5
"sometimes dedicated competition mud boggers run higher (numerically lower) gears in the front so that the front pulls more and they maintain more steering... but i don't think they use as big of difference as 4.10-5.29 "
That gearing diff in comp mud running is also moslty done with tire diameter alone.
If you must regear only the rear 1st, be sure to remove the front driveshaft and do not reinstall until the front is done. I'd even tag the diff's with paint-marker. A friend of mine bought a used full-size with no front driveshaft. When he got a used shaft and put it in, then put it in 4wd, he cracked the 203 case in half!. No warrenties on used trucks baby.
Stew
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Post by Hoodlum on Nov 10, 2005 10:36:54 GMT -5
side note, sometimes dedicated competition mud boggers run higher (numerically lower) gears in the front so that the front pulls more and they maintain more steering... but i don't think they use as big of difference as 4.10-5.29
Drumbum is on the money.
my '85 was set up that way it had 4.10's in the rear and 3.90's up front I changed the front out for another 4.10 set so I could take it off-road when I finish the frame swap.
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Post by rockcrawlintoy on Nov 10, 2005 10:59:23 GMT -5
it depends how far off u are. 4.10s and 5.29s will = boom i rin 5.38s on the front and 5.29s in the rear with no problems but thats the closest ratio i can get.
Drew
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Post by cmfb87 on Nov 10, 2005 22:54:32 GMT -5
ok thanks me and a few friends were think thats what would happin and i guess we were right. just kinda wanted to see. and thinks about the boggers always wondered how they set up there trucks.
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Post by mudwiser316 on Nov 11, 2005 9:10:18 GMT -5
I ran my truck for awhile with 4.10"s and 5.29"s. I would not use the front end unless I had to. luckily me I did not use it that much. If running soupy goo it will not hurt things too bad but it will help pull you through the mud like you would not believe. As for steering it helps alot to. My new gears and locker should be ready to install soon I hope. I will put my rear 5.29's in the front.
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Post by toyman on Dec 30, 2005 15:58:37 GMT -5
What about 4.88 front and 4.56 rear?
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Post by 94cnytoy on Dec 30, 2005 16:13:42 GMT -5
Just don't do it.
It will cause drivetrain binding and broken parts unless there is constant terrain slippage available.
Stew
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Post by 4xfreak on Jan 1, 2006 23:25:54 GMT -5
I have read somewhere (possibly http://www.ringpinion.com) that you can run different gear ratios as long as they are within 1% of each other (exp. 4.11/4.10= 1.002)
The question that Toyman posted was "What about 4.88 front and 4.56 rear?" This would equate to 1.07, so you may be able to get away with it or you may not. If nothing else go to the aforementioned website and call there 800 number, they will be happy to answer your question.
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