Installed 37's on Gen3 35 Raptor - no issues.

[CplRaptor]

Changing tire size in forscan is super easy. In BdyCM you change 726-15-02 to C1xx-xxxx. After that you have to run the PCM relearn to clear a DTC that pops up after the BdyCM change.

Yeah , I need to dive into using forscan for sure. Is it possible to run the 37ko2s on the R wheels with stock suspension off road or would it just cause damage ? I may just get the r wheels and pop the stock tire size on there if that’s the case.

 

[BaseModelRaptor]

Yeah , I need to dive into using forscan for sure. Is it possible to run the 37ko2s on the R wheels with stock suspension off road or would it just cause damage ? I may just get the r wheels and pop the stock tire size on there if that’s the case.

 

[taquitos]

Yeah , I need to dive into using forscan for sure. Is it possible to run the 37ko2s on the R wheels with stock suspension off road or would it just cause damage ? I may just get the r wheels and pop the stock tire size on there if that’s the case.

Kind of depends on how hard you want to go. Clearance looks better doing static clearance testing because that doesn’t account for body mount bushings deforming. If you watch slow motion videos of the truck landing hard you will notice it looks like the bumper is moving around. That’s actually the body moving around relative to the frame. Ford didn’t decrease travel on the 37PP and R for no reason. With stock offset wheels and stock 37 tires you won’t ever blow your fenders off though. I did actually design a kit to replicate the tire clearance on a 37 truck without losing any travel. There are a couple of threads about that on here.