Ruckstell oil

Discuss all things Model T related.
Forum rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules

Topic author
Posts: 25
Joined: Wed Apr 10, 2019 5:17 pm
First Name: Robert
Last Name: Giles
Location: Johnstown, Pa

Ruckstell oil

Post by Divcoone » Mon Sep 23, 2019 8:08 pm

What oil/grease is recommended for a Ruckstell?

User avatar

Posts: 385
Joined: Fri Jan 04, 2019 4:17 pm
First Name: Mark
Last Name: Strange
Location: Hillsboro, MO
MTFCA Number: 30944
MTFCI Number: 23667

Re: Ruckstell oil

Post by cudaman » Mon Sep 23, 2019 8:43 pm

Mark Strange
Hillsboro, MO
1924 Cut-off Touring (now a pickup)

User avatar

Posts: 90
Joined: Sun Jan 06, 2019 11:57 am
First Name: John T
Last Name: Tannehill III
Location: Hot Coffee, MS

Re: Ruckstell oil

Post by JTT3 » Mon Sep 23, 2019 8:48 pm

I like the 80W-90 Lucus gear oil. I like it because of its climbing ability. In my Ruckstell I added the tab that, I think, Dan McEachern talked about to direct more lubricant in the inner section of the Ruckstell

Posts: 140
Joined: Sat Apr 13, 2019 6:06 pm
First Name: Susanne
Last Name: Rohner
Location: Northeastern California
MTFCA Number: 49765
MTFCA Life Member: YES
Board Member Since: 1999

Re: Ruckstell oil

Post by Susanne » Tue Sep 24, 2019 12:42 am

Curse me if you must, but I switched from 85-140 back to 600W in mine, and the problems I had (hard shiftinng, whine, etc._ went away. I only have about 4-5000 miles on the car since the switch, so I worry about it's imminent failure... (Yes, I know it's "steam oil")

Sorry. I know people thing modern oil or nada, but it works for mine. Not conjecture, but what I have run in it for miles. YMMV. With all the bronze in the rear end, I feel safer knowing my rear end oil is no longer attacking it.

Original Smith
Posts: 886
Joined: Tue Jan 08, 2019 10:43 am
First Name: Larry
Last Name: Smith
Location: Lomita, California
MTFCA Number: 121
MTFCA Life Member: YES
MTFCI Number: 16310

Re: Ruckstell oil

Post by Original Smith » Tue Sep 24, 2019 10:03 am

I'm been running Sta Lube SAE 140 for years in all of my Ruckstells.

Posts: 294
Joined: Mon Jan 07, 2019 5:42 pm
First Name: Stan
Last Name: Howe
Location: Helena, MT
Board Member Since: 1999

Re: Ruckstell oil

Post by StanHowe » Tue Sep 24, 2019 10:45 am

I've torn ruckstells down that have been running modern GL 5 for years. The only discernable thing I have seen is a greenish tint to the bronze plate.
Any modern lube - cheapest possible crap from tractor supply - is so far superior to the best there was 100 years ago that there is no comparison.
Personally, I like Lucas 80-140 gear lube but I don't think it makes much difference overall as long as you don't run heavy grease that won't work its way in between the bronze plate and the thrust plate.

Norman Kling
Posts: 395
Joined: Tue Jan 08, 2019 1:39 pm
First Name: Norman
Last Name: Kling
Location: Alpine California

Re: Ruckstell oil

Post by Norman Kling » Tue Sep 24, 2019 11:03 am

You need a lighter grade oil than 600W for this reason: There are small holes inside the carrier which allows oil into the planetary gears and differential gears. For this reason you should also direct oil into these areas upon assembly of the axle. Also put some in the area where the shifter is bolted. 80W140 or 90 works very well.

Posts: 27
Joined: Sat Jan 19, 2019 1:01 pm
First Name: Les
Last Name: Von Nordheim
Location: Fallbrook, CA

Re: Ruckstell oil

Post by lesvonnordheim » Wed Sep 25, 2019 1:04 am

I have been using 90-140 synthetic gear oil from McMaster Carr. Been using it for over 20 yrs. and very happy with the does not attack the Bronze thrust washer. The gear oil stay's clear and does not turn a Bronze color like I have found using conventional gear oil.

Post Reply Previous topicNext topic