roof vent issue

[mechanic1]

well hello to all you rv,ers been awhile since i talked with you fine folks , i have a simple question my vent in the bathroom will crank up and crank down . however it does not crank down tight like it used too .i know someone over cranked it a stripped the gear in it . question is can you buy a new gear box for it or do you have to buy a whole new vent i know on the ol mobile home crank out windows you can replace the gear boxs on those .but these vents i dunno keep in mind this is a 1977 ford motorhome maybe the parts are no longer avalible .nothin leaks in this ol girl and i hate to replace that vent and start a leak not good winter is cummin on me hear in pennsylvania i need to adress this issue asap thanks for your time dave sr

[Ray,IN]

I found such parts with an internet search once. I used general terms, tried several times, and finally it returned a website with what I needed. Here is the result of one search: RV Roof vent gearbox - Dogpile Web Search
I don't know if any results will be fruitful or not.
Update; within that very search I found a gearbox, covers, etc. http://www.mobilehomerepair.com/Order9-exhaust.html
Hope is is what you seek.

[RVhauler]

Those parts are pretty universal and any RV dealer should have them on hand. Mostly the vent covers are replaced and they usually have a new gear/crank assy as part of the replacement if worst comes to worst.

[mechanic1]

i know my motorhome is a older one . but i like it and my kids refuse to even hear about me selling it . however why in gods name is it so hard to find a losey roof vent gear box are you a member well no you got a part no. no what in the same heck is goin on i have a antenna on my

rv it works just fine one i don,t know who made it two they want you to buy new i don,t want new i just want to fix what i got . the gear needs replced is all it picks up better than my house antenna only thing is it takes my son and i to raise it were as it should just crank up i don,t want to replace it and cause a leak .this thing does not leak at all and its a 1977 model and i want to keep it that way. i can find parts for a 49 ford or a 31 buick but not for my motorhome not even a gosh darn vent gear box . off coarse if i wanted to spend 3 days on the internet i might find one i don,t have time for this. i have a shop to run very dissapointed need help dave