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Old 03-13-2013, 01:09 PM
1950F2 1950F2 is offline
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what wt oil for tran and rear end

I'm working on a 1950 F2 that has been sitting 43 years in a barn.
What gear oil is used for trans(4 speed crash box) and stock rear end??

Would it be a good idea to warm up the trans and rear end to get the old oil to "flow" better?? heat gun/torch it a little??
When I took oil pan off it was like coal tar inside!!
also. how much in ea.

thanks!!
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Old 03-13-2013, 01:37 PM
truckeemtnfords truckeemtnfords is offline
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truckeemtnfords has a very good reputation on FTE.truckeemtnfords has a very good reputation on FTE.truckeemtnfords has a very good reputation on FTE.
Typically you will be good with a 85-90 wt gear oil. Obviously it will flow better warm but unless something real nasty comes out just letting it drain a little while before refilling and you should be fine.
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Old 03-13-2013, 02:20 PM
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You are supposed to use a GL-3 gear oil, which isn't usually available except at farm /fleet stores. GL-5, the most common gear oil nowadays, can attack the copper in the trans (synchro blocker rings). There are exceptions, see below
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Old 03-13-2013, 08:17 PM
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I have flushed out my trany transfer box and both axles with 90 weight ..and after a good run and warmed up changed it all out for amsoil synthetic a lot quieter and seems to run cooler ..at least no gear oil smells now but I agree pull th eplug and let it drain for the night ..don't heat it with a torch ..I set fire to mine doing that ..yah I'm an idiot ..
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Old 03-13-2013, 08:17 PM
 
 
 
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