Back to the rear end lubricant question, I understand it should be a Hypoid SAE 90 to 140W/160W (for extreme use) GL-1 mineral based which it seems impossible to find... Just by looking around I have found the following...
1- NAPA 65-201 (90W) GL-1, Mineral based. NON EP lubricant = Not Hypoid lubricant... So it is out. This would be good for the crash box and driveshaft***
2- NAPA 75-210 (80W-85/90) GL 3, 4, 5.. Blend? EP = Hypoid lubricant, not mineral based as I understand... Out.
3- PARTS MASTER # 5831 (80W-90W) GL-5, MT-1.. Blend? EP = Hypoid lubricant, not mineral based as I understand... Out.
4- VALVOLINE # VV825 (85W-140W) GL-5, MT-1.. Blend? EP = Hypoid lubricant, not mineral based as I understand... Out.
5- LIQUI-MOLY # 20016 (85W-90W) GL1- GL-4, Mineral based. NON EP lubricant as I understand, so it is Out as well...
As you can see, it is a challenge to find the correct oil...Maybe someone can make specific recommendations, since oil is not oil and there are many brands out there that may work but also cause other problems because they're really not suited for older machines...
*** Back to the driveshaft lubrication, it is specified to use the same oil as in the gear box... The driveshaft tube has grease fittings, how to you fill it with (1 pound) of 90W transmission oil? Remove the grease fitting and use an oil can?? Thanks you.
