The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Proper way to check Rear Diff Gear Ratio??

**Palf70Step** · 03-08-2023, 10:38 PM

That sounds right. On gm 12 or 10 bolts. I like to pull the rear cover, clean it out and check the numbers on the ring gear. Then seal it up and put fresh 90w in it. I always figure, that lots of folks just run them till they break. So I like to do the service Nd visual on the diff.

03-08-2023, 10:38 PM	#2
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 46,744	Re: Proper way to check Rear Diff Gear Ratio?? That sounds right. On gm 12 or 10 bolts. I like to pull the rear cover, clean it out and check the numbers on the ring gear. Then seal it up and put fresh 90w in it. I always figure, that lots of folks just run them till they break. So I like to do the service Nd visual on the diff. __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!