Difference btw F250/350 and F450/550
I think I got a handle on the differences between a 2005-2007 F250/350 being springs (which can be the same depending on order), rear spring block and helper springs. What is the difference between th...
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I don't keep up with all the different possible combos but the 450 and 550's had different frames and had I believe at least 430 or 488 rear ends The 350's had 373 and the Tow Boss model 411 or 430 all which would allow for higher payloads but lower MPG's.
