73 f250 360 2wd. T18 manual
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Joined: Jul 2020
Posts: 10,576
Likes: 2,678
From: Near Salt Lake City
Just get something old that is not GL5
Might want to do a ton of research online
Some people use straight 40 or 50 weight aircraft oil
If you look around hard enough you can find GL3 or GL4 gear lube NOS (no sulfur additives that will eat the brass synchro blocking rings)
VP makes a good one so does Red Line,
I'd just hit a parts store and look for manual trans fluid GL4
Ebay has the VP stuff for 10.80 a quart but 15 bucks shipping
Might want to do a ton of research online
Some people use straight 40 or 50 weight aircraft oil
If you look around hard enough you can find GL3 or GL4 gear lube NOS (no sulfur additives that will eat the brass synchro blocking rings)
VP makes a good one so does Red Line,
I'd just hit a parts store and look for manual trans fluid GL4
Ebay has the VP stuff for 10.80 a quart but 15 bucks shipping
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