[Hanno Spoelstra]

Originally Posted by Hanno Spoelstra

Rear wheel cylinder part no. 5450071, diameter 1-3/8"

Suppliers of new replacement parts:

• Dorman W4358 (cross reference for part no. 5450071 and 5450565): https://www.dormanproducts.com/p-19418-w4358.aspx
• Chevs of the 40s. "Item # 5450071 37-52": https://www.chevsofthe40s.com/detail...h_14_Drum.html

Edited to add - note: https://www.finditparts.com/products...4/dorman-w4358 lists the following Part Interchanges:

• General Motors 5450071
• General Motors 5450565
• Centric Parts 134.80027
• Wagner Brake F4358
• Aimco W906010
• Coni-Seal WC257460
• Raybestos Brakes WC4358
• Wagner Brake WC4358