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Good afternoon fellow Boost Addicts,<br><br>Since purchasing my BFGK02s in 275/70/18, I am unsure of the proper inflation. The 275/60/18 stock Goodyear Wranglers were set at 35psi. <br><br>The technicians at Sam's Club set the tires at 45psi, but even they said that they weren't sure.<br><br>Can someone help?
 

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Between 40 and 45 is fine. I run 305/65r18 and have mine set 42 front and 40 rear. They say the best way to test is to do a tire chalk test to get the best wear pattern.
 
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If you go to BFG's site, to their Contact Us area, you can send them an inquiry. Include your OEM tire size and they'll shoot you back a recommended pressure for your truck. It'll help if you can give them your actual curb weight too.
 

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Assuming original tire was a pmetric 114 load index thats a 2601 lb tire. Derated to truck rating thats 2365 lb.
I dont have load inflation tables for 125 LT E1 but extrapolating from a 123 it appears 2365 lb would be around 45 psi.
 
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