Rear shaft seal

[Blue-88]

I have an 88 c1500 2wd with an extended bed. I’m rebuilding the transmission and having trouble sourcing the rear shaft seal and bearing. I bought a rebuild kit and the seal and bearing are too large. Bought individual seal and bearing twice and both are too wide. It’s the extended tail housing. Anyone out there have a part number. Sorry the numbers on the calipers are upside down. Looks like 2.35”on the seal and about 1.65” on the bearing

 

[Blue-88]

Sorry, it’s a TH400 tranny

 

[Erik the Awful]

Do you know what the transmission came from?

 

[tayto]

try this:

More Information for NATIONAL 5200

 

[GoToGuy]

Extended bed? Longer than normal full size? Is it original trans? Did you get the numbers off the seal and bearing you removed?