is there any way to forsure tell?? they look the same..the 58X look like a 1 piece wheel, and the one on the 4.8 crank and 6.0 look like 2 wheels put together..i can get pics if needed.

 

It has the 24x wheel. In 2007 the classic style trucks still had a 24x wheel while the 900series came with the 58x. You can see the diff between the 2 if looking at them. I also should have mentioned that yes the ls1 crank is a little diff, you should always have a crank other then what came out of the engine balanced.

 

The 24x wheel has 24 teeth on it, the 58x has 58 teeth. 99-07 classic has 24, 07+ has the 58.

 

Is that ricer math? Isn't 24 x 2 = 48?

 

haha, oops

 

 

 

haha. ricer math..thanks for helping me out. looks like im ok to take this to the machine shop without worrying if the reluctor wheel is different.