I have read all the older post on here about Centramatic's but am unclear if the 300-308 are correct for my Ram 3500 Dually... then to make it more confusing I am running 19.5" American Force Wheels? Anybody else running these on a dually?
What do you all think?

 

I do not run the wheels but do have the Centramatics and I would bet the larger wheel will make them easier to fit.

 

I do not know if this will be of any help as my truck is srw. I run the 19.5 Rickson Classic's and the Centermatics work great on them but I can not use them with the Rickson steel 19.5 spare. Spare wheel tapers back to quickly and presses against the balancer before the lugnuts bottem out.

 

Sent an e-mail to Centramatic and this was the response:

"400-408 FOR THE FRONT AND A SET OF 600-629 FOR 19.5 “ RIM WITH 8 STUD , 6.5” BOLT CIRCLE"

I sent back saying that there was no listing for the 600-629??

"THERE IS NOT ONE
THIS IS FOR THE 19.5 8 STUD 6.5” BOLT CIRCLE
I GUESS THEY ARE WAITING TO MAKE THE ADDITION TO THE WEB SITE WITH OTHER CHANGES"

was the response back, I'm waiting on prices.

 

Centramatic's came in, WOW big difference from fronts which are standard for the 17" stock wheels and they say will be fine for my 19.5" to the rears for 19.5" wheels. Found great price on them from a place in OH. The front pic is just sitting in one of my rear wheels for the camera.

 

I have them on my truck with stock wheels and they work great.