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Madmax305 · 07-07-2011, 08:19 AM

Can anybody recommend which gear oil/weight to use? It is for my 67 El Camino, GM 12 bolt, posi with 4.10 gears. Sorry for the noob questions, but which oil, weight, oil additive for the posi, how much will it hold and should I use RTV instead of the gasket? I read somewhere that synthetic should not be used.

07-07-2011, 08:19 AM	#1
Madmax305 Member Join Date: Apr 2009 Posts: 61 Tweet	Which gear oil in the diff? Can anybody recommend which gear oil/weight to use? It is for my 67 El Camino, GM 12 bolt, posi with 4.10 gears. Sorry for the noob questions, but which oil, weight, oil additive for the posi, how much will it hold and should I use RTV instead of the gasket? I read somewhere that synthetic should not be used.