Tork lift outside arms compatibility

The 2001 and the 2005 Ford F-250/550 are the same body styles there my be a difference in the frame but my guess is that it should work fine. You can check this site for truck specs.https://www.fleet.ford.com/truckbbas/topics/mission.html
Also go to Torklift's site and compare the part numbers.

My sense would be to contact Torklift. They should know, they made them.

I think they only make the arms in two flavors; curved and straight. I know when I added side steps that extended to the rear wheel, all I had to do was swap out the part that's on the truck as the arms, the bent kind, were the same. Just the mount angle was adjusted down was all.

So, my bet is; there are just the two styles and Torklift builds their bases to specific trucks to utilize the common arms.

Problem with the Torklifts app. guides they do not list the arms and the mounts separately, part numbers are for both. Generally its the mount thats unique. Your fronts should be same (arms) rear- one variable is hitch. but
I will say this when I switched factory receiver (01 F250) to super hitch, I also ordered new rear mounts. The arms were the same as my old ones (and same as used on fronts) only the mounts attaching to the hitch was different.
http://www.torklift.com/documents/appguides/application_guide.pdf
but a call or note to Torklift should verify.

I took the good advice here and called Tork Lift. Folks were very helpful. It sounded pretty iffy on the fit......straight vs. curved so I'm going to order from them for a grand total of 32.00 more (total) over the price on Craigslist. If anybody's in the market, there is a set of arms for sale on the Portland, Or Craigslist.
Thanks for all the help.

try a measuring tape?