Ring and pinion choice for 4.8 LS - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72LSLB · 02-14-2017, 02:42 PM

My 72 currently has a spool rear end and I'm going to have it changed over to most likely a posi or maybe an open. I was wondering what gear would be best for my setup. Will be a once in a while cruiser to work and to shows.

The engine is a 2007 4.8 LS with a 4l60e trans, controlled by a Mega Squirts MS3 Pro controller. The rear tires will be 28.66 in diameter. I'm not sure what the overdrive ratio is for a 4l60e trans.

Can anyone help me with the formula for figuring this out? I was thinking on going with a 3:55 or 3:73.

Thanks

02-14-2017, 02:42 PM	#1
72LSLB Registered User Join Date: Feb 2017 Location: Harvard Illinois Posts: 76	Ring and pinion choice for 4.8 LS My 72 currently has a spool rear end and I'm going to have it changed over to most likely a posi or maybe an open. I was wondering what gear would be best for my setup. Will be a once in a while cruiser to work and to shows. The engine is a 2007 4.8 LS with a 4l60e trans, controlled by a Mega Squirts MS3 Pro controller. The rear tires will be 28.66 in diameter. I'm not sure what the overdrive ratio is for a 4l60e trans. Can anyone help me with the formula for figuring this out? I was thinking on going with a 3:55 or 3:73. Thanks __________________ 1972 C10 Custom Deluxe 4.8 LS 4l60e

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.