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post #1 of (permalink) Old 02-04-2010, 07:20 PM Thread Starter
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need help with gearing

I m in the process of building a mud bogger not sure what gears r best can anyone help. 1964 gmc 327ci th350 w/full manual valve body 2500 stall,203 case ,edelbrock intake carb, comp extreme 4x4 cam. has stock gearing prob 373,s,36/ 13.5 /15 irocks can not keep any rpm... doing mud bogging not racing so be in the deep stuff. thx
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post #2 of (permalink) Old 02-05-2010, 07:58 AM
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Look at the replies in this forum...not many. Either no one knows anything or they are not sharing. IMO (which isn't worth much) that LITTLE 327 isnt much of a torque monster....your going to need to wind it up. Something like a 4.88 up front and a 5.14 in rear or maybe one more higher each...depends on how high you take that 327.

Last edited by whatsup; 02-05-2010 at 08:01 AM. Reason: because i wanted to
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post #3 of (permalink) Old 04-21-2010, 03:11 PM
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first while the 327 may not be the best motor I have seen a an 85 chevy smoke all four tires on dry pavement with a 327.Second always run the same gears front and back,if you dont you will ruin your transfer case and transmission.4.56 or 4.88 is what I would go with.
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post #4 of (permalink) Old 04-21-2010, 08:53 PM
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While same front and rear is generally the rule, I've heard that the dedicated mud pit only guys want to spin the fronts just a little faster than the rears to keep the back from passing the front mid run.
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post #5 of (permalink) Old 04-23-2010, 03:39 PM
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I would stick with the same gears and tire size.Running diff. gears or tire sizes front and back may work for mud racing but for bogging I wouldnt do it.
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