I have the 3000 but thinking about the 4000 gsk. I thought there was somewhere you could just get the extra stuff ( springs ) to make it a 4000 ?

Anyone know?

 

right here, but you absolutly need to get 60lb valve springs or your going to hurt something:
http://www.purecummins.com/catalog/2...2010740_x2.php

 

Call Garrett at Purediesel. I think he has the kit. puredieselpower.com

 

Thanks for the info guys. I always wanted to know the same thing. Is a fluid dampner needed also?
Cory

 

No fluid damper here and I've got about 50,000 miles on my 4K GSK.

John

 

Just about any place that sells the 3k and 4k kits should sell the the springs. I like dealing with Peak diesel.

Fluid damper isn't required, but will make the truck smoother anyway.

 

I agree, you should get the 60lb valve springs as well.

 

I got the fluid dampner already. I am going to set my trans to shift at 3000 to 3200 rpm so it does not over rev. The reason I want them it so I have more power to 3200 from a stop. I have a ats standalone valve body that lets me do what I want with the transmission. I can atleast get by with the 4000 till I get the springs in.

Thanks for the input.