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M41 Transmission Fluid 140-160 1973

posted by  HUMBO on  Tue Jun 22 01:04 CST 2010
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last visit: Tue Mar 12 16:09 CST 2013
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We're bringing our 1973 142 back to life and are just finishing installation of an M41 (4 speed + overdrive), transmission. The owners manual says use 30 weight motor oil in it, or 20W-40W. I know that ATF is used in the M46. What changed between the M41 and the M46 to cause a change to ATF? And is something else better than 30 Weight? After all, the technology in 1973 is a few years old.
Thanks
Jim






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New M41 Transmission Fluid [140-160][1973]
posted by  HUMBO  on Tue Jun 22 01:04 CST 2010 >


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