75/80W Hypoid Oil??

[dsifford]

I need to add differential oil to my GL1800 Lehman conversion. Went to 3 different auto parts places and no such thing exists. Been a while sine I looked at diff oil. Any suggestions? or substitute.

After I add the oil then I need to find the leak.

 

[JaysGone]

Any GL5-80/90w oil should be ok.
Given a choice.
Id find some GL4 80w and just use that. Its less corrosive.
That can be found anywhere.
Ive also in the past used 85/140 in my Camaro.


But someone with alot more knowhow then me with trike rears will chime in soon enough.

 

[hbrogan57]

First, I would call Lehman and see what the suggest. I did do a search and found gear oil at Advanced Auto. If you are leaking let's hope it's nothing more that a gasket replacement and not a crack someplace.

Buy Gear Oil at Advance Auto Parts

I need to add differential oil to my GL1800 Lehman conversion. Went to 3 different auto parts places and no such thing exists. Been a while sine I looked at diff oil. Any suggestions? or substitute.

After I add the oil then I need to find the leak.

 

[keepinon]

I use 75/80w hypoid gear oil in my boat motor drive. You can find it at WalMart, in the quart bottles, or squirt tubes of about 12 oz. The tubes are much easier to work with.

 

[dsifford]

Thanks for the responses. Lehman now recommends 80/90W because 75/80 was hard to find.

 

[Mgammon]

I am using 80/90 Valvoline synthetic available at Advanced .. Seems to
work pretty well .. Also used it in the Venture rear end for several years ...