i need help

[Blue 82]

Got an autozone near you?
Check for a Duralast 8944

[Captkaos]

If you have a Dually axle, going by the VIN isn't going to help you, K20's didn't come with Dual rear wheels.  You need to know what kind of axle you have.  14bolt or Dana 60/70.  If it is a dually axle, it won't be a 14bolt, and it won't match your VIN.

[Blue 82]

If you have a Dually axle, going by the VIN isn't going to help you, K20's didn't come with Dual rear wheels.  You need to know what kind of axle you have.  14bolt or Dana 60/70.  If it is a dually axle, it won't be a 14bolt, and it won't match your VIN.

I think someone put some sort of "dual wheel arrangement" on the stock 14 bolt rear, given the 11" brakes.
Here's an identification guide that will help.

http://www.coloradok5.com/axleguide.shtml

[hotrodhauler]

i have the 14 corporate big one it is true 14 and i am sure they just put the tires and rims on there now can i keep it by putting in the disc's and putting in longer studs for the tires which makes sense too cause the lug nuts never went on all the way or do i drop the axle and put on the one ton axle this truck will never be used to really haul any thing more than a small car trailer and that so is this possible   i bet it would be quite an original truck but i got every thing figured out now that way thank you so much guys it means alot you guys rock or can i just do a 13 in drum upgrade and if so what would that all intail or would it just be easier to do the 11,s again or can i keep the duals or can i still make it a disc i lost