getrag
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#6
i use 15w-40 in mine. it has worked great for the last 50k mi. the factory manual called for 30 non detergent, not to be confused with hd30 which contains detergents. i say 30 wt isnt heavy enough to keep the main bearings lubed proper as that is the only thing ive ever seen go bad in these tranys. other opinions.....?
#7
Heavier oils are one of the worst possible things you can do to a Getrag, right behind lugging it and towing in 5th. It ties in to why they need to overfilled. It is tallish case design canted down at the rear in the Dodge. This can result in oil starvation for the pilot bushing and front bearings.
Overfilling with lighter oil will enable proper lubrication. A modern Synchromesh is the single best fluid for the G360. It'll shift much smoother with Synchromesh as well.
Overfilling with lighter oil will enable proper lubrication. A modern Synchromesh is the single best fluid for the G360. It'll shift much smoother with Synchromesh as well.
#8
#9
Probably from lugging it. There's literally hundreds of possible failure mode combination, depending on what was done to it. I'm just telling you what the lube issues are.
Heavier oil will not necessarily provide better protection, contrary to the old wive's tale, and has a harder time getting into the front bearings. Add cold weather to not enough gear oil and your Getrag's days are numbered for sure.
Heavier oil will not necessarily provide better protection, contrary to the old wive's tale, and has a harder time getting into the front bearings. Add cold weather to not enough gear oil and your Getrag's days are numbered for sure.
Last edited by NadirPoint; 01-23-2010 at 09:58 AM.
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