Hi guys,
First post. Be gentle.
Just about to pull the trigger on buying a Cummins powered beast, been a K5/Suburban nut for many years but I want power and an upgrade without having to 'build' a truck like I've done with my one ton K5's, etc. My father in law has an '01 longbed that flat out amazed me pulling a trailer up Mt. Hood. Call me a convert. Lots to learn about diesels but I'll catch on.
Basic questions for the group that I haven't been able to find in the sea of info on here -
1. What year did the 'quad cab' with rear seating (3 across) and 4 doors start?
2. What year did the HO motor come out, 01? How can I be sure a truck I look at has the HO motor?
3. What year did the 5 speed go to a 6 speed? I'm not sure if I want an auto or manual (probably prefer a manual for the lack of down the road spending when I get the bombing bug) but transmission choice may be dictated by other option preferences. I want a quad cab SHORTBED.
4. Those of you with shortbeds - have you regretted not going longbed? I want a more maneuverable truck after driving a Suburban the past 2 years.
5. Ride quality shortbed vs. longbed. Any comments on which is better 'stock'? Figure a good set of RS9000's will fix any ride quality problem.
6. Where are the option codes to check for a rear factory posi?
7. These trucks have Dana 80 rear and Dana 60 front axles, right? Or was AAM used in there somewhere?
Thanks for this great resource. Appreciate any input y'all can give.
First post. Be gentle.

Just about to pull the trigger on buying a Cummins powered beast, been a K5/Suburban nut for many years but I want power and an upgrade without having to 'build' a truck like I've done with my one ton K5's, etc. My father in law has an '01 longbed that flat out amazed me pulling a trailer up Mt. Hood. Call me a convert. Lots to learn about diesels but I'll catch on.
Basic questions for the group that I haven't been able to find in the sea of info on here -
1. What year did the 'quad cab' with rear seating (3 across) and 4 doors start?
2. What year did the HO motor come out, 01? How can I be sure a truck I look at has the HO motor?
3. What year did the 5 speed go to a 6 speed? I'm not sure if I want an auto or manual (probably prefer a manual for the lack of down the road spending when I get the bombing bug) but transmission choice may be dictated by other option preferences. I want a quad cab SHORTBED.
4. Those of you with shortbeds - have you regretted not going longbed? I want a more maneuverable truck after driving a Suburban the past 2 years.

5. Ride quality shortbed vs. longbed. Any comments on which is better 'stock'? Figure a good set of RS9000's will fix any ride quality problem.
6. Where are the option codes to check for a rear factory posi?
7. These trucks have Dana 80 rear and Dana 60 front axles, right? Or was AAM used in there somewhere?
Thanks for this great resource. Appreciate any input y'all can give.
