Correct tire size for F250

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F250MudPatrol
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Correct tire size for F250

Post by F250MudPatrol »

I want the biggest possible bad boy mudders for my 1971 F-250.

Dana 60 front and rear.

Dana 24 T-case.

3.73 gear ratio.

3" body lift.

3" suspension lift.

What would you guys/gals suggest? Size? Brand? Style?
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heep70
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re: Correct tire size for F250

Post by heep70 »

54" Boggers 8)
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Greg

1971 F250 "Highboy". SOLD to "Highboy_Firefighter_71"
2000 Subaru Outback limited.
2000 F250 4X4 PSD SuperDuty Crew.
2010 Polaris 800RMK Dragon 155"
2013 Polaris Pro 800 RMK 163"
1980 Built Toyota "Trail Rig".
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heep70
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Post by heep70 »

If you go real tall your gearing (HP) is going to suffer. I ran 39" mickeys on another Ford and ended up regearing it with 4.56 to get HP back where it needed to be.

I also run 35" on my Toyota with 5.29 gears and the speedo is still under by 4MPH. Kills me going up highway hills.
Greg

1971 F250 "Highboy". SOLD to "Highboy_Firefighter_71"
2000 Subaru Outback limited.
2000 F250 4X4 PSD SuperDuty Crew.
2010 Polaris 800RMK Dragon 155"
2013 Polaris Pro 800 RMK 163"
1980 Built Toyota "Trail Rig".
My last 1971 "Highboy" pics
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averagef250
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Post by averagef250 »

If you really have 6"s over stock you should clear 40"s or so with not much cutting.

What you are doing with the truck sure has more impact on what tires to recommend than how big you can fit. I like BFG muds for the street and mild offroad or boggers for offroad only.

I would suggest 31" tires to go with your 3.73 gears.
1970 F-250 4x4 original Willock swivel frame chassis '93 5.9 Cummins/Getrag/NP205/HP60/D70
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Wes
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re: Correct tire size for F250

Post by Wes »

My 67 came w/ 4.56 r&p and 30 9.50 16.5, lets just say it was no speed machine, I want to go 35's w/ the 4.56's. May be 37's I think they'll clear the stock High boy suspension.
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heep70
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re: Correct tire size for F250

Post by heep70 »

35" is pushing it for clearence with the stock suspension. They will rub if you bend it up. I run 33" on my Highboy.
Greg

1971 F250 "Highboy". SOLD to "Highboy_Firefighter_71"
2000 Subaru Outback limited.
2000 F250 4X4 PSD SuperDuty Crew.
2010 Polaris 800RMK Dragon 155"
2013 Polaris Pro 800 RMK 163"
1980 Built Toyota "Trail Rig".
My last 1971 "Highboy" pics
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