Also , if I put an overflow catch can on the radiator will that require a different cap inorder to let the coolant back in to the radiator ?
Hope you get an answer for this one, I added an overflow (old coke bottle) and replaced the rad cap (from LMC Truck) on my truck. I haven't had a chance to drive the truck since I put it on. If I get her on the road anytime soon. I'll let you know. Never did think about there being different types of rad. caps.
