Carb swapped tbi.

[PlayingWithTBI]

I think 1998 was the final year for the GMT400.

For pickups, otherwise Burbs, other SUVs, and 3500HD were up to 2000.

 

[df2x4]

For pickups, otherwise Burbs, other SUVs, and 3500HD were up to 2000.

You could get the pickups through 2000 as well I believe, but they were pretty rare and might have been a special order option. A friend of my dad's had a '99 or '00 ECSB that was still the GMT400 platform. I believe he ordered it...

 

[thegawd]

there also absolutely is 1999 c/k 1500 but production numbers are very low.

 

[tpass]

there also absolutely is 1999 c/k 1500 but production numbers are very low.

the gmt400 lived on until 2002 with the 3500HD (cab and chassis models only)

 

[thegawd]

I knew about those but I have come across more than one 1999 c/k1500. people were telling the one guy he didnt know what year his own truck was... it was absolutely built in 1999 for the 1999 year and was a k1500. it may have been ordered but I dont remember that part. buddy had to order parts for a 1998 and no one at a parts store believed him so he just started saying 1998....

 

[kennythewelder]

I knew about those but I have come across more than one 1999 c/k1500. people were telling the one guy he didnt know what year his own truck was... it was absolutely built in 1999 for the 1999 year and was a k1500. it may have been ordered but I dont remember that part. buddy had to order parts for a 1998 and no one at a parts store believed him so he just started saying 1998....

Yea, a 99 classic. I had a coworker with a 2000 2500 crew cab. He had the same issue. He had to ask for parts for a 98. His truck was a GMT 400. It looked just like a crew cab version of my 97. Even had a 5.7L Vortec.

 

[AuroraGirl]

the gmt400 lived on until 2002 with the 3500HD (cab and chassis models only)

wonder if that wasnt contractual or something.seems odd that there would be 2002 gmt 400 C&C unless they still had small block vortecs as well(or big blocks) that may not have been used in the gmt800 with the LS platform?

Unless GM was taking advtantage of 2004 deadline for OBD2 100% compliance for "Heavy duty" light duty trucks, where they could have low volume no cat converters maybe. An LS vehicle would probably not have any programming made for no converters emissions while a vortec would have calibrations still.

 

[tpass]

wonder if that wasnt contractual or something.seems odd that there would be 2002 gmt 400 C&C unless they still had small block vortecs as well(or big blocks) that may not have been used in the gmt800 with the LS platform?

Unless GM was taking advtantage of 2004 deadline for OBD2 100% compliance for "Heavy duty" light duty trucks, where they could have low volume no cat converters maybe. An LS vehicle would probably not have any programming made for no converters emissions while a vortec would have calibrations still.

My 2001 has the 8100 vortec (or gen7 bigblock) and dual cats. A lot of the parts descriptions call it a "carryover" model. Also, technically it's a GMT455... not a 400