Housing Cast Metal.
3 Threaded outer holes and cross drilled.
3.40"OD x 1.50" deep,
Center Hole is 1.25"ID
Some paint gone and some rust.
Casting number 531255.
Housing Cast Metal with 3 outer holes and grease zerk.
Center Hole .75"ID,
3 Outer Holes, Smooth, No Threads .40"ID.
Overall 4.00" OD and 3.87" Wide.
Casting number 332870.