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JSeery · 04-05-2021, 09:25 AM

The call outs for lube was evolving during this time period. If you look at the Ford specs in the late 30 and into the 40s they are recommending want is now GL4. You could also use GL1.

04-05-2021, 09:25 AM	#25
JSeery Member Emeritus Join Date: Nov 2012 Location: Wichita KS Posts: 16,132	Re: Transmission Oil The call outs for lube was evolving during this time period. If you look at the Ford specs in the late 30 and into the 40s they are recommending want is now GL4. You could also use GL1.