Westin 4 inch Chrome Nerf Bars that Fit 2017 Ram 2500 Crew Cab and Regular Cab  

Question:

Expert Reply:

You mentioned two trucks, one is a 2017 Ram 4 door and a 2017 2500 Ram with an unknown cab style so it's harder for me to maybe get you the exact info you need but I will try my best.

So cab style is really important for picking out running boards. For example the part # 21-3540 that you referenced would fit your 2017 Ram 2500 if the truck had a regular cab. If instead you had a Crew Cab you'd instead need the part # 21-3560 since the cab is longer and the steps would need to compensate for that as well.

expert reply by: Jameson C

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