I950 Chevy 3100 has the enclosed U-joint in the "Ball" on the tail end of the transmission. How do you get the oil into this location to lubricate the joint? Please help refresh my mind.
Grasshopper, the answers to all life's mysteries can be found in "The Manual".
1950 Chevrolet 3100 (Ol' Roy)
1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)
Curtis Lee, According to step "5" of the "Assembly" instructions in the Shop Manual on pg 4-52, you remove the speedo drive gear and fill the housing from there.
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
There's also a plug just forward of the u-joint bell on the transmission. It's a little above centerline on the right side and mainly serves to keep the output shaft bushing in place, but goes all the way through to allow you to put gear oil in it. It's angled up a bit so you could pour oil in without it running all over the place, but a suction gun with a tube on the end would be a better choice.
BTW, the page that Dan shows says "Fill the housing with transmission lubricant", but it only takes 1/2 pint. Don't overfill, although you could remove the fill plug on the side of the transmission and fill till it starts running out there. A quart is enough to fill the original 3 speed transmission in your truck. 1/2 pint for the u-joint area and the rest in the main gearcase till it runs from the fill plug on the side.
Last edited by klhansen; 05/26/20247:33 PM. Reason: added pic
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
