GaryBudd Posted July 22, 2018 Share Posted July 22, 2018 I've got a steady drip from rear end front (drive shaft side). Never tried replacing gaskets in rear end before. If it's a big job I may hire it out.Any help would be appreciated. Link to comment Share on other sites More sharing options...
Spinneyhill Posted July 23, 2018 Share Posted July 23, 2018 (edited) Where, exactly? Pinion (i.e. front of differential housing) or where the differential bolts to the axle housing? Where does the oil actually come from? The gasket or up the thread of a bolt or two? Every bolt has one end in the air and one in the oil so oil tracks up the threads, easily. Also, what about the rear cover? It is usually a pressed steel part with a cork gasket under it. People overtighten the bolts, compressing the gasket locally and permanently bending the rim of the cover. It is very hard to get that cover to seal after that. Mine is leaking out of the bottom bolt. Grrrr. Edited July 23, 2018 by Spinneyhill (see edit history) 1 Link to comment Share on other sites More sharing options...
GaryBudd Posted July 23, 2018 Author Share Posted July 23, 2018 My project for this week is giving the pumpkin a good cleaning to try to locate the leak. Link to comment Share on other sites More sharing options...
Spinneyhill Posted July 23, 2018 Share Posted July 23, 2018 I don't get where a pumpkin fits in a car... 1 Link to comment Share on other sites More sharing options...
keiser31 Posted July 23, 2018 Share Posted July 23, 2018 (edited) 23 minutes ago, Spinneyhill said: I don't get where a pumpkin fits in a car... Haha....pumpkin=rear axle, ring and pinion assembly. Edited July 23, 2018 by keiser31 (see edit history) 1 Link to comment Share on other sites More sharing options...
C Carl Posted July 25, 2018 Share Posted July 25, 2018 What viscosity gear oil are you using ? -Carl 1 Link to comment Share on other sites More sharing options...
maok Posted July 25, 2018 Share Posted July 25, 2018 Do you have too much oil in there? Take the fill hole bolt out and let it drip out until it stops. 1 Link to comment Share on other sites More sharing options...
GaryBudd Posted July 25, 2018 Author Share Posted July 25, 2018 Using SAE 75w-110. Not overfilled. Link to comment Share on other sites More sharing options...
Spinneyhill Posted July 25, 2018 Share Posted July 25, 2018 A bit thin? Probably should be SAE 85W-140 or just SAE 140? 1 Link to comment Share on other sites More sharing options...
C Carl Posted July 25, 2018 Share Posted July 25, 2018 Hi Gary. Pinion seals are like sleeping dogs to me. From your initial posting, I guess you would enjoy regarding them likewise. Try the easy way out first. That is changing to a significantly heavier gear oil. In your case, I highly recommend going directly to SAE 250. You do not need hypoid. The slightly increased drag in your slow speed, simple spiral bevel gears is insignificant, unless you store AND drive your car in below freezing temperatures. Please let us know if this does the trick for you. I think your chance of success is greater than even. - Carl 1 Link to comment Share on other sites More sharing options...
maok Posted July 25, 2018 Share Posted July 25, 2018 I use Pentrite T250 transoil, very thick. 1 Link to comment Share on other sites More sharing options...
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