Last model year for CST option. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**70cst** · 07-27-2021, 10:13 PM

As said ... what was the last year for the CST option? I htought it was 70.
Thanks

**special-K** · 07-27-2021, 10:36 PM

Yep. But you probably posted this thread because you saw a '71 with Z84 Custom Sport Truck on the SPID. The key is you go by the RPO, not the description. You will also so 396 listed on some '71 SPIDs when we all know it would actually be a 402, same as '70. Do some '70s show 396 on the SPID as well? I can't recall

**70cst** · 07-27-2021, 10:49 PM

Quote:

Originally Posted by special-K

Yep. But you probably posted this thread because you saw a '71 with Z84 Custom Sport Truck on the SPID. The key is you go by the RPO, not the description. You will also so 396 listed on some '71 SPIDs when we all know it would actually be a 402, same as '70. Do some '70s show 396 on the SPID as well? I can't recall

Nah ... I saw a 71 being sold with a cst optioned on the SPID ... but its like my truck SPID with a 396 listed when its a 402.

Just wanted to be sure.

blackdiesel · 07-27-2021, 10:59 PM

My '70 CST has it listed on the SPID as a 396. The fender has a 400 badge, and the motor mounts were for a big block. (Purchased truck with no motor or trans)

**special-K** · 07-27-2021, 11:07 PM

With trucks '69 was the last year for CST and 396. You go by the RPO code. Basically, they started calling CSTs Cheyennes in '71. Some SPIDs were printed wrong but the code is right

**jocko** · 07-27-2021, 11:53 PM

For trucks, Z84 was a Custom Sport Truck (CST) through the end of 1970 - then Z84 transitioned to Cheyenne for 71-72 (and into the square years). You will still see Z84 referred to on some 71 SPIDs as Custom Sport Truck, even though the truck will have Cheyenne trim. Z84/CST was the top of the line trim until 71 when Chevrolet added the YE9 RPO, the Cheyenne Super (and just as CST evolved to Cheyenne for Z84 in this era, Cheyenne Super evolved to Silverado for YE9 in the square years, around 76 I believe).

**70cst** · 07-28-2021, 08:12 AM

Quote:

Originally Posted by jocko

For trucks, Z84 was a Custom Sport Truck (CST) through the end of 1970 - then Z84 transitioned to Cheyenne for 71-72 (and into the square years). You will still see Z84 referred to on some 71 SPIDs as Custom Sport Truck, even though the truck will have Cheyenne trim. Z84/CST was the top of the line trim until 71 when Chevrolet added the YE9 RPO, the Cheyenne Super (and just as CST evolved to Cheyenne for Z84 in this era, Cheyenne Super evolved to Silverado for YE9 in the square years, around 76 I believe).

Need to share

Tuff Gong · 07-28-2021, 12:02 AM

My 71 super listed custom sports truck on the SPID.

**jocko** · 07-28-2021, 12:03 AM

Quote:

Originally Posted by Tuff Gong

My 71 super listed custom sports truck on the SPID.

Some Supers listed both Z84 and YE9. To be a Super, it has to have the YE9 - did yours list both?

Tuff Gong · 07-29-2021, 12:36 PM

Quote:

Originally Posted by jocko

Some Supers listed both Z84 and YE9. To be a Super, it has to have the YE9 - did yours list both?

I don't think it did. I'll try and pull up some pictures

07-27-2021, 10:13 PM	#1
70cst Senior Member Join Date: Feb 2001 Location: New Madison, Ohio Posts: 21,375	Last model year for CST option. As said ... what was the last year for the CST option? I htought it was 70. Thanks __________________ A husband can be right...or...A husband can be happy. 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder!

07-27-2021, 10:36 PM	#2
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Last model year for CST option. Yep. But you probably posted this thread because you saw a '71 with Z84 Custom Sport Truck on the SPID. The key is you go by the RPO, not the description. You will also so 396 listed on some '71 SPIDs when we all know it would actually be a 402, same as '70. Do some '70s show 396 on the SPID as well? I can't recall __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

07-27-2021, 10:59 PM	#4
blackdiesel Registered User Join Date: Jan 2009 Location: Omaha, Arkansas Posts: 929	Re: Last model year for CST option. My '70 CST has it listed on the SPID as a 396. The fender has a 400 badge, and the motor mounts were for a big block. (Purchased truck with no motor or trans) __________________ '57 Chevy Pickup '56 GMC LCF Cummins '38 Chrysler Royal '57 2wd change http://67-72chevytrucks.com/vboard/s...light=speedway

07-27-2021, 11:07 PM	#5
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Last model year for CST option. With trucks '69 was the last year for CST and 396. You go by the RPO code. Basically, they started calling CSTs Cheyennes in '71. Some SPIDs were printed wrong but the code is right __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

07-27-2021, 11:53 PM	#6
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,985	Re: Last model year for CST option. For trucks, Z84 was a Custom Sport Truck (CST) through the end of 1970 - then Z84 transitioned to Cheyenne for 71-72 (and into the square years). You will still see Z84 referred to on some 71 SPIDs as Custom Sport Truck, even though the truck will have Cheyenne trim. Z84/CST was the top of the line trim until 71 when Chevrolet added the YE9 RPO, the Cheyenne Super (and just as CST evolved to Cheyenne for Z84 in this era, Cheyenne Super evolved to Silverado for YE9 in the square years, around 76 I believe).

07-28-2021, 12:02 AM	#8
Tuff Gong Registered User Join Date: Jan 2011 Location: Glendale, AZ Posts: 3,178	Re: Last model year for CST option. My 71 super listed custom sports truck on the SPID.



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