TT gear oil?
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Topic author - Posts: 3
- Joined: Wed May 29, 2019 9:44 pm
- First Name: Sam
- Last Name: Jenkins
- * REQUIRED* Type and Year of Model Ts owned: 1924 TT; 1925 Tudor; 1926 Touring
- Location: NC
TT gear oil?
What weight gear oil for my TT rear axle? Also how much oil?
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- Posts: 11
- Joined: Mon Jan 07, 2019 1:23 pm
- First Name: Chris
- Last Name: Hansen
- * REQUIRED* Type and Year of Model Ts owned: 1923 TT, 1927 Tudor
- Location: Unionville, MI
Re: TT gear oil?
I use 140w in my TT and have since 1965. I don't drive it here in Michigan in the winter. I think the oil would be too thick. As to level, recommended up to the filler plug. I keep mine just below that level. Have fun.
Chris Hansen
Chris Hansen
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- Posts: 5370
- Joined: Sat Jan 05, 2019 1:57 pm
- First Name: Mark
- Last Name: Gregush
- * REQUIRED* Type and Year of Model Ts owned: 1925 cutdown PU, 1948 F2 Ford flat head 6 pickup 3 speed
- Location: Portland Or
- Board Member Since: 1999
Re: TT gear oil?
If it has been sitting for a while, don't forget to add some at the upper plug at the worm drive. Unless it is early and does not have the plug, in that case I would jack one side up and let it run for a while then recheck the level. don't forget to chock the wheels so it does not drive off. 

I know the voices aren't real but damn they have some good ideas!
1925 Cut down pickup
1948 Ford F2 pickup

1925 Cut down pickup
1948 Ford F2 pickup
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Topic author - Posts: 3
- Joined: Wed May 29, 2019 9:44 pm
- First Name: Sam
- Last Name: Jenkins
- * REQUIRED* Type and Year of Model Ts owned: 1924 TT; 1925 Tudor; 1926 Touring
- Location: NC
Re: TT gear oil?
Thanks for the replies. I have always used 600wt filled to the pipe plug fill point on all my A's and T's. Reading in Murray Fahnestocks book on the Model T it talks about using 1 to 1.25 lbs of heavy grease or one pint of steam cylinder or 600wt oil in model T rear axle. This just got me to wondering what others were using in there axle. This is my first TT- it has been sitting for at least 15 years and I was wondering about the upper plug in the rear axle.
1924 TT Closed Cab
1925 T Tudor Sedan
1926 T Touring Car
1924 TT Closed Cab
1925 T Tudor Sedan
1926 T Touring Car