I have a 1981 fj40. serviceing the warn hubs (M239). I have a rebuild kit from SOR but unfortunatley the seals/o rings are wrong. it has a smaller O ring and a larger split kind of sqaure O ring or seal under the cap that is not available? Unubtanium?
after some digging, reading, texting, calling, and wrenching, i wanted to put some notes down that i think will be helpful to at least a few people in the future. the fllowing information is out there, but not consolidated and not as straight forward.
there is no rebuild kit for a warn m239.
i am in the middle of swapping knuckles, birfs, brakes to my 75 fj40 from a donor 1978 axle. it has thew dealer added warn hubs for the 1978 long birfs. SOR, and many others, advertise a warn hub rebuild kit for the applicable year. its garbage, and doesnt have a single useful thing in it other...
