Like it says what is the stock belt size. Do you have to change the belt when you change to any# pulley also. The number that was on my truck was xl3v-8620 ba is that the stock belt.

 

No one can tell me what the stock size belt is. Is it what I posted.

 

I'll have to look at my old belt to give you that size and its at work. I am running a 4lb lower pulley(8.47" diameter) now and use a GDY-4080685 goodyear belt. Hope that helps if not I will try and remember to get the number off the stock belt or measure it.

 

Depending upon which pulley you use, you may or may not have to change it.

I believe the stock belt is 66" from what I've gathered through searching.

Search around a bit more and you may have some luck finding some better info.

Paul G.

 

stock = 66"

most people then go:
4lb pulley, use Gatroback 67.5
6lb pulley, use Gatorback 68.5
8lb pulley, use Gatorback 69.0

I always went 1\2" shorter w\pully swaps.