Yes, 6 speed. It's the factory gears, but I'm not sure on the size, I'll have to look it up.

 

i bought a 07 slt yukon, had all the options the denali had but the 5.3, paid 5k less than the denali. put a turbo on it and it will had a stock to modified n/a denali its ***. i see it as money well spend, also gets the same mileage maybe a hair better.

 

But no warranty. I'm glad I got the Denali as mine is now getting a new engine for free.

 

real performance guys dont worry about warranties.

also modding my truck and racing it only to break something, then bring it to the dealer for them to fix is a little unethical to me, and a bitch move.

 

All this...

Never understood how it's the dealerships responsibility if I modify something above and beyond how it came from the factory that they should foot the bill.