How do I tell ratio on eatons - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mikep · 02-14-2003, 03:17 PM

Theres a lot of 3/4 and one ton trucks with eatons in the local boneyard. How do I tell what the ratio is without tearing into one. Is there a code on the outside that will tell? Also is there a way to tell if they are limited slip or detroit locker without pulling the wheels? Any tag ? All of them have the wheels on them still.

**Classic Heartbeat** · 02-14-2003, 03:24 PM

Mike, There is a code stamped on the top right side of the front drop out unit itself. The code will have either 2 or 3 letters to start it out with. There are probly at least 50 different combinations of letters, and they are year specific. So without the letters or taking a book with you it would be hard to figure it out. The numbers are real tough to read also even with the best of circumstances. WES www.ClassicHeartbeat.com

02-14-2003, 03:17 PM	#1
mikep Used to have a truck Join Date: May 2002 Location: port orchard WA Posts: 1,552	How do I tell ratio on eatons Theres a lot of 3/4 and one ton trucks with eatons in the local boneyard. How do I tell what the ratio is without tearing into one. Is there a code on the outside that will tell? Also is there a way to tell if they are limited slip or detroit locker without pulling the wheels? Any tag ? All of them have the wheels on them still. __________________ No truck :-(

02-14-2003, 03:24 PM	#2
Classic Heartbeat Project Junkie! Fishing Poor!! Join Date: Dec 1999 Location: Olympia,Wa. 98512 Posts: 10,766	Mike, There is a code stamped on the top right side of the front drop out unit itself. The code will have either 2 or 3 letters to start it out with. There are probly at least 50 different combinations of letters, and they are year specific. So without the letters or taking a book with you it would be hard to figure it out. The numbers are real tough to read also even with the best of circumstances. WES www.ClassicHeartbeat.com __________________ On-line catolog Classic Heartbeat Pickup Parts WEHEPP@comcast.net Call us Toll Free (888) 338-2502 Like Us on Facebook No appointment necessary. 72 BB Chevy Custom Deluxe / Custom Camper 67 I-6 (Soon to be 5.7 LS1) Panel 68 BB Chevy Short Bed 72 6.0 LQ9 Short Bed Chevy 4X4 Olympia's fastest growing truck parts supplier. Olympia's home for Wayward Chevys

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