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Can F78-14 Trailer Tire Size be Replaced with 205/75-15 Tire Size


We have an older boat trailer with f78 14 tires We want to buy 205 75 15 tires Will these 15s fit


Expert Reply:

Since your old trailer wheels are 14 inch in diameter you'll need to go with new wheels and tires to upgrade to a 15 inch setup with size 205/75-15. For that you'd want the part # A15R645SMD which has a 5 on 4-1/2 inch bolt pattern.

Or the part # TA27VR for a 6 on 5-1/2 inch bolt pattern. These are the two most common bolt patterns. If you are unsure what you have I attached a help article that covers determining bolt pattern as well.

expert reply by:
Jameson C

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