I called marlin and they said it will not fit in a 40 axle only a 60 axle... why would this be i just want to know why... i ordered just oem ones because its not a huge deal to me but wish i could have had them...
Well, this is directly from their website:
"Our New Heavy Duty Inner Axle Seals are designed by Marlin Czajkowski of Marlin Crawler and are an exclusive Marlin Crawler product. Current applications include all 1979-1985 Toyota Hilux 8" Front Axles, and all 1969-1/1990 Landcruiser front axles including FJ40, FJ45, FJ55, FJ60, and FJ62."
They fit just fine in my 71 fj40. I don't know who you talked to, but it would seem they are wrong since I and others have installed them in fj40 axles.
Good luck!
Edit: pbg you beat me by a minute!