The Ford Barn

Dave Castle · 07-31-2017, 09:50 PM

80/90 wt gear lube in stock 1940 pickup rear end ?

19Fordy · 07-31-2017, 09:56 PM

No. Owners manual calls for SAE 140 in summer and SAE 90. Trouble is that the old SAE oil is no longer available. There has been a lot of discussion here about which oil to use. Here's a good start on the conversation.
I use STALUBE 140 GL4 in both trans and rear end.
https://www.fordbarn.com/forum/showt...ansmission+oil

The current thinking is that you don't want to use any gear oil in the transmission that has additives that corrode "yellow metal" like the synchros in the transmission. These gear oils are usually GL-5.

JSeery · 07-31-2017, 10:06 PM

Modern gear lubes can be purchased in multiple grades such as 85w - 140. The "w" stands for winter grade. So best of both worlds. GL4 or GL5 are both ok for rear axle use. The GL4 is a good choice if you want to use the same lube in the transmission.

Dave Castle · 07-31-2017, 10:07 PM

Ok , where do I purchase "STALUBE 140 GL4" ?

leon bee · 07-31-2017, 10:17 PM

My NAPA store had a gallon on the shelf. If your's doesn't, they can get it.

Dave Castle · 07-31-2017, 10:27 PM

Sponsored Links (Register now to hide all advertisements)

Thank up gentleman, that will work !!

edhd58 · 07-31-2017, 10:32 PM

got my gl4 at Orielly's

tubman · 07-31-2017, 11:13 PM

If you're not in a compete hurry, try Amazon.com. The last time I looked, it was $10 less than NAPA with free shipping. I just checked it, and they still have the same deal.

jimTN · 08-01-2017, 07:12 AM

You can order straight 90 wt EP especially made for older vehicles from Rural King.
I used it in a transmission I recently built and its a lot quieter than the multi wt stuff and also seems to shift better. https://www.ruralking.com/?q=rural+k...alking.com%2F=

Phil Gillespie · 08-01-2017, 07:22 AM

Dont forget if its a GL5 spec EP Gear Oil the additives are not too kind to the syncro rings in the gear box.
Just replaced some GL5 EP gear oil with a Classic Golden Film Oil from Morris of UK. A GL1 spec oil. Any way the oil I drained out had a gold tinge to it as this was the EP GL5 gear oil. Correct oil is cheap compared to g/box parts.
Phil NZ

19Fordy · 08-01-2017, 09:35 AM

Quote:

Originally Posted by Dave Castle

Ok , where do I purchase "STALUBE 140 GL4" ?

Dave I bought mine on-line here. Amazon Prime also sells it cheap.
https://www.finditparts.com/products...rc-ind-sl24238

grumppyoldman · 08-02-2017, 01:43 PM

Has anyone tried Lucas gear oil?

Drbrown · 08-02-2017, 10:12 PM

I'm with tubman .... Amazon less expensive and free shipping. Last purchase they had Stalub in different viscosities and types. I use 140 in banjo and 90 in tranny for better shifting in winter.

callbald · 08-03-2017, 08:48 AM

I purchased MasterPro GL4 140 from Orielly's for my 39 transmission and it foamed, not a little but major foaming. Called VanPelt about the problem. Ended up having to get that junk out of the trans and bought Sta Lube Gl4 from VanPelt. I think it ran about $16/qt and takes something less than 2 qts. No problems, no foaming

joe 1950 · 08-05-2017, 08:20 AM

to one grumppyoldman from another I use 80-90 gear oil with a little more than a pint of lucas in both diff. and trans with o-d been 19 years now with no problem knock on my wooden head

07-31-2017, 09:50 PM	#1
Dave Castle Senior Member Join Date: Jun 2017 Location: Carmel, Ca Posts: 269	Correct weight gear lube ? 80/90 wt gear lube in stock 1940 pickup rear end ?

07-31-2017, 09:56 PM	#2
19Fordy Senior Member Join Date: May 2010 Location: Coral Springs FL Posts: 10,950	Re: Correct weight gear lube ? No. Owners manual calls for SAE 140 in summer and SAE 90. Trouble is that the old SAE oil is no longer available. There has been a lot of discussion here about which oil to use. Here's a good start on the conversation. I use STALUBE 140 GL4 in both trans and rear end. https://www.fordbarn.com/forum/showt...ansmission+oil The current thinking is that you don't want to use any gear oil in the transmission that has additives that corrode "yellow metal" like the synchros in the transmission. These gear oils are usually GL-5. Last edited by 19Fordy; 08-01-2017 at 09:32 AM.

07-31-2017, 10:06 PM	#3
JSeery Member Emeritus Join Date: Nov 2012 Location: Wichita KS Posts: 16,132	Re: Correct weight gear lube ? Modern gear lubes can be purchased in multiple grades such as 85w - 140. The "w" stands for winter grade. So best of both worlds. GL4 or GL5 are both ok for rear axle use. The GL4 is a good choice if you want to use the same lube in the transmission.

07-31-2017, 10:07 PM	#4
Dave Castle Senior Member Join Date: Jun 2017 Location: Carmel, Ca Posts: 269	Re: Correct weight gear lube ? Ok , where do I purchase "STALUBE 140 GL4" ?

07-31-2017, 10:17 PM	#5
leon bee Senior Member Join Date: May 2017 Location: Arkansas Posts: 611	Re: Correct weight gear lube ? My NAPA store had a gallon on the shelf. If your's doesn't, they can get it.

07-31-2017, 10:27 PM	#6
Dave Castle Senior Member Join Date: Jun 2017 Location: Carmel, Ca Posts: 269	Re: Correct weight gear lube ? Sponsored Links (Register now to hide all advertisements) Thank up gentleman, that will work !!

07-31-2017, 10:32 PM	#7
edhd58 Senior Member Join Date: Jul 2014 Location: Guston,ky Posts: 653	Re: Correct weight gear lube ? got my gl4 at Orielly's

07-31-2017, 11:13 PM	#8
tubman Senior Member Join Date: Dec 2013 Location: Minnesota, Florida Keys Posts: 10,321	Re: Correct weight gear lube ? If you're not in a compete hurry, try Amazon.com. The last time I looked, it was $10 less than NAPA with free shipping. I just checked it, and they still have the same deal.

08-01-2017, 07:12 AM	#9
jimTN Senior Member Join Date: May 2010 Location: Powell, TN Posts: 2,509	Re: Correct weight gear lube ? You can order straight 90 wt EP especially made for older vehicles from Rural King. I used it in a transmission I recently built and its a lot quieter than the multi wt stuff and also seems to shift better. https://www.ruralking.com/?q=rural+k...alking.com%2F=

08-01-2017, 07:22 AM	#10
Phil Gillespie Senior Member Join Date: Sep 2011 Location: Christchurch New Zealand Posts: 1,611	Re: Correct weight gear lube ? Dont forget if its a GL5 spec EP Gear Oil the additives are not too kind to the syncro rings in the gear box. Just replaced some GL5 EP gear oil with a Classic Golden Film Oil from Morris of UK. A GL1 spec oil. Any way the oil I drained out had a gold tinge to it as this was the EP GL5 gear oil. Correct oil is cheap compared to g/box parts. Phil NZ

08-02-2017, 01:43 PM	#12
grumppyoldman Senior Member Join Date: Apr 2017 Location: Texas Gulf Coast Posts: 727	Re: Correct weight gear lube ? Has anyone tried Lucas gear oil?

08-02-2017, 10:12 PM	#13
Drbrown Senior Member Join Date: Oct 2013 Location: Glens Falls NY Posts: 1,267	Re: Correct weight gear lube ? I'm with tubman .... Amazon less expensive and free shipping. Last purchase they had Stalub in different viscosities and types. I use 140 in banjo and 90 in tranny for better shifting in winter.

08-03-2017, 08:48 AM	#14
callbald Senior Member Join Date: Jan 2014 Location: Leo, Indiana Posts: 235	Re: Correct weight gear lube ? I purchased MasterPro GL4 140 from Orielly's for my 39 transmission and it foamed, not a little but major foaming. Called VanPelt about the problem. Ended up having to get that junk out of the trans and bought Sta Lube Gl4 from VanPelt. I think it ran about $16/qt and takes something less than 2 qts. No problems, no foaming

08-05-2017, 08:20 AM	#15
joe 1950 Senior Member Join Date: Mar 2013 Location: Green Bay Wi Posts: 400	Re: Correct weight gear lube ? to one grumppyoldman from another I use 80-90 gear oil with a little more than a pint of lucas in both diff. and trans with o-d been 19 years now with no problem knock on my wooden head