How to determine rear end ratio? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chevybill · 10-03-2004, 08:19 AM

How can you determine the rear end ratio?

I marked the drive shaft and it turns twice to the rear wheel turning once, but that does not equate into a gear ratio?

Do I need to pull the rear end cover and look at how many times the ring gear turns in relation to the axle?

any help appreciated.

Did all lwb chevy and gmcs come with 2 piece driveshafts? I think my
uncle had a lwb gmc with out the carrier bearing in the driveshaft. I was talking to trans guy and he said lwb truck definitely needed a carrier bearing due to length. Do this sound correct?

10-03-2004, 08:19 AM	#1
chevybill Senior Member Join Date: Oct 2004 Location: calhoun city ms Posts: 940	How to determine rear end ratio? How can you determine the rear end ratio? I marked the drive shaft and it turns twice to the rear wheel turning once, but that does not equate into a gear ratio? Do I need to pull the rear end cover and look at how many times the ring gear turns in relation to the axle? any help appreciated. Did all lwb chevy and gmcs come with 2 piece driveshafts? I think my uncle had a lwb gmc with out the carrier bearing in the driveshaft. I was talking to trans guy and he said lwb truck definitely needed a carrier bearing due to length. Do this sound correct? __________________ ongoing 1970 c 10 lwb 1994 z-28 few mods.-owned since new 1978 vette silver/grey 25th anniv. paint



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