Axle code help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Joesjunk** · 11-06-2002, 06:50 PM

Can anyone tell me what axle code "TAY" is. It is a 1971 1/2ton 4x4. My book doesn't show that code for some reason?? I am trying to find out the gear ratio. Thanks, Joe

**Classic Heartbeat** · 11-06-2002, 07:06 PM

Hmmmm... You sure you have the letters right? All my Chevrolet parts Catolog shows for 71 K-10s are: THH=3:07, THJ=3:07 P/Trac., THK=3:73, THL=3:73 P/Trac. I checked from 69 to 72 and those numbers are even further away from what you have. It must be a later model rear end or something. WES www.ClassicHeartbeat.com

**Joesjunk** · 11-06-2002, 07:23 PM

Wes, This is the 2nd or 3rd "71" I have had that the code wasn't in the book??? I have always found all of the other codes. And that is exactly what it says, TAY ????. I just sold a truck to BLAZERMAN and it has a 71 chassis with the same code ( I think)?
Thanks, Joe

**Classic Heartbeat** · 11-06-2002, 07:40 PM

The book shows a THY (model) C-10 4.11:1, a TJY (model) C-10 3.54:1 Power Lock, TKY (model) 3988408 4.11:1 Thats all I have been able to come up with. You probly have the same book I have though. WES www.ClassicHeartbeat.com

**Joesjunk** · 11-06-2002, 09:00 PM

Thanks WES. Anyone else seen this code??

JJR · 11-08-2002, 08:53 AM

This won't be any help but the only entry Hollanders shows for TAY is a 1981 C10 4X2 10 bolt with 2.73 non-locking gears. I know this is not what you have. Wes already covered some of the other options. Sorry.

**Joesjunk** · 11-08-2002, 11:16 AM

Thanks guys, I opened it up and its a 3:07 non posi.

11-06-2002, 06:50 PM	#1
Joesjunk Senior Member Join Date: May 2001 Location: Independence MO. Posts: 7,705	Axle code help Can anyone tell me what axle code "TAY" is. It is a 1971 1/2ton 4x4. My book doesn't show that code for some reason?? I am trying to find out the gear ratio. Thanks, Joe __________________ 72 3/4t Custom Deluxe 402/auto 66k Original paint 71 3/4t 4x4 Custom Deluxe 10k original miles Original paint 71 3/4t Cheyenne 402 70k original paint 72 3/4t 4x4 Custom deluxe 72 3/4t 4x4 Custom deluxe 91k original paint 72 Cheyenne/30 Dually 69 Camaro SS396 4-speed 13 GMC 2500HD Duramax I bought new 05 Jeep Wrangler "Willys Edition" 12k miles (I bought new) 85 3/4 ton 4x4 Scottsdale 33k miles original paint 86 1 ton 4x4 SRW Silverado 454 restored 80 1 ton 4x4 SRW Silverado 9,434 original miles!! original paint 95 GMC 1 ton dually 4x4 my dad bought new 95 GMC 3/4 ton 4x4, regular cab 454, 31k original miles 2002 2500HD 4x4 regular cab 6.0L 67k miles 2002 2500HD 4x4 regular cab 8.1L 28k miles 2003 GMC 2500HD 4x4 regular cab Diesel 93k miles 67-72 Parts for sale

11-06-2002, 07:06 PM	#2
Classic Heartbeat Project Junkie! Fishing Poor!! Join Date: Dec 1999 Location: Olympia,Wa. 98512 Posts: 10,766	Hmmmm... You sure you have the letters right? All my Chevrolet parts Catolog shows for 71 K-10s are: THH=3:07, THJ=3:07 P/Trac., THK=3:73, THL=3:73 P/Trac. I checked from 69 to 72 and those numbers are even further away from what you have. It must be a later model rear end or something. 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

11-06-2002, 07:23 PM	#3
Joesjunk Senior Member Join Date: May 2001 Location: Independence MO. Posts: 7,705	Wes, This is the 2nd or 3rd "71" I have had that the code wasn't in the book??? I have always found all of the other codes. And that is exactly what it says, TAY ????. I just sold a truck to BLAZERMAN and it has a 71 chassis with the same code ( I think)? Thanks, Joe __________________ 72 3/4t Custom Deluxe 402/auto 66k Original paint 71 3/4t 4x4 Custom Deluxe 10k original miles Original paint 71 3/4t Cheyenne 402 70k original paint 72 3/4t 4x4 Custom deluxe 72 3/4t 4x4 Custom deluxe 91k original paint 72 Cheyenne/30 Dually 69 Camaro SS396 4-speed 13 GMC 2500HD Duramax I bought new 05 Jeep Wrangler "Willys Edition" 12k miles (I bought new) 85 3/4 ton 4x4 Scottsdale 33k miles original paint 86 1 ton 4x4 SRW Silverado 454 restored 80 1 ton 4x4 SRW Silverado 9,434 original miles!! original paint 95 GMC 1 ton dually 4x4 my dad bought new 95 GMC 3/4 ton 4x4, regular cab 454, 31k original miles 2002 2500HD 4x4 regular cab 6.0L 67k miles 2002 2500HD 4x4 regular cab 8.1L 28k miles 2003 GMC 2500HD 4x4 regular cab Diesel 93k miles 67-72 Parts for sale

11-06-2002, 07:40 PM	#4
Classic Heartbeat Project Junkie! Fishing Poor!! Join Date: Dec 1999 Location: Olympia,Wa. 98512 Posts: 10,766	The book shows a THY (model) C-10 4.11:1, a TJY (model) C-10 3.54:1 Power Lock, TKY (model) 3988408 4.11:1 Thats all I have been able to come up with. You probly have the same book I have though. 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

11-06-2002, 09:00 PM	#5
Joesjunk Senior Member Join Date: May 2001 Location: Independence MO. Posts: 7,705	Thanks WES. Anyone else seen this code?? __________________ 72 3/4t Custom Deluxe 402/auto 66k Original paint 71 3/4t 4x4 Custom Deluxe 10k original miles Original paint 71 3/4t Cheyenne 402 70k original paint 72 3/4t 4x4 Custom deluxe 72 3/4t 4x4 Custom deluxe 91k original paint 72 Cheyenne/30 Dually 69 Camaro SS396 4-speed 13 GMC 2500HD Duramax I bought new 05 Jeep Wrangler "Willys Edition" 12k miles (I bought new) 85 3/4 ton 4x4 Scottsdale 33k miles original paint 86 1 ton 4x4 SRW Silverado 454 restored 80 1 ton 4x4 SRW Silverado 9,434 original miles!! original paint 95 GMC 1 ton dually 4x4 my dad bought new 95 GMC 3/4 ton 4x4, regular cab 454, 31k original miles 2002 2500HD 4x4 regular cab 6.0L 67k miles 2002 2500HD 4x4 regular cab 8.1L 28k miles 2003 GMC 2500HD 4x4 regular cab Diesel 93k miles 67-72 Parts for sale

11-08-2002, 08:53 AM	#6
JJR Registered User Join Date: Apr 2000 Location: Leesburg, GA Posts: 746	This won't be any help but the only entry Hollanders shows for TAY is a 1981 C10 4X2 10 bolt with 2.73 non-locking gears. I know this is not what you have. Wes already covered some of the other options. Sorry. __________________ FOUNDING MEMBER OF THE DRUM BRAKE CLUB Second Owner 70 C-10 Second Owner 93 GMC C1500 Third Owner 99 C2500 Crew Cab Short Bed

11-08-2002, 11:16 AM	#7
Joesjunk Senior Member Join Date: May 2001 Location: Independence MO. Posts: 7,705	Thanks guys, I opened it up and its a 3:07 non posi. __________________ 72 3/4t Custom Deluxe 402/auto 66k Original paint 71 3/4t 4x4 Custom Deluxe 10k original miles Original paint 71 3/4t Cheyenne 402 70k original paint 72 3/4t 4x4 Custom deluxe 72 3/4t 4x4 Custom deluxe 91k original paint 72 Cheyenne/30 Dually 69 Camaro SS396 4-speed 13 GMC 2500HD Duramax I bought new 05 Jeep Wrangler "Willys Edition" 12k miles (I bought new) 85 3/4 ton 4x4 Scottsdale 33k miles original paint 86 1 ton 4x4 SRW Silverado 454 restored 80 1 ton 4x4 SRW Silverado 9,434 original miles!! original paint 95 GMC 1 ton dually 4x4 my dad bought new 95 GMC 3/4 ton 4x4, regular cab 454, 31k original miles 2002 2500HD 4x4 regular cab 6.0L 67k miles 2002 2500HD 4x4 regular cab 8.1L 28k miles 2003 GMC 2500HD 4x4 regular cab Diesel 93k miles 67-72 Parts for sale

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