The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Looking For Info on 3-Speed Trans Ratios

Brad · 01-07-2007, 01:21 AM

Are you sure you have an original rearend? Could it be that it's been swapped out for a Camaro rearend giving you say, a 2.73 rear gear ratio? To check what ratio you have jack up the rearend and make a mark on the tire and on the driveshaft. Spin the tire 1 revolution and count how many turns it spins the driveshaft. If it's 3 & 3/4 turns its a 3.73, just over 4 turns and it's a 4.10

01-07-2007, 01:21 AM	#8
Brad Out of the carpool lane. Join Date: Jan 2000 Location: Clark Co, WA Posts: 5,673	Re: Looking For Info on 3-Speed Trans Ratios Are you sure you have an original rearend? Could it be that it's been swapped out for a Camaro rearend giving you say, a 2.73 rear gear ratio? To check what ratio you have jack up the rearend and make a mark on the tire and on the driveshaft. Spin the tire 1 revolution and count how many turns it spins the driveshaft. If it's 3 & 3/4 turns its a 3.73, just over 4 turns and it's a 4.10 __________________ 1968 C-10 SWB, 5.7 Vortec/700R4/3.73 posi, Torch Red 1968 Camaro, 250/Powerglide, all original (No, I'm not gonna drop a 350 in it!...Jeez!) 2000 Honda VFR in the faster yellow! 2008 Husqvarna TE-610 1967 C-10 SWB 'Six Appeal'-Gone but not forgotten...