BLUF: There's a new style of PTO but if your old PTO is working there's no need to replace it.
Courtesy photo
Mechanics, there are two (2) different configurations of power takeoff (PTO) transmissions for FMTVs; an old style PTO transmission and a new style PTO transmission.
If your old PTO is working, there’s no need to replace it. Just be aware that it’s no longer being produced.
Old PTO
The fit and the function of the old and new PTOs are basically the same, except the new PTO doesn’t have the pressure lube line.
All FMTV’s (2.5, 5, and 10-ton models) use the same PTO except for the M1089A1P2 wrecker, which uses NSN 2520-01-578-1111.
To get the new style PTO, use NSN 2520-01-480-2088, (PN 277-20).
New PTO
You’ll want to jot this info down until the appropriate TMs are updated.