605 steering gearbox

Jeff Sine

Active Member
Supporting Member 1
I have a P/S conversion on my 64 Impala (On car when I purchased it) and need a new gearbox. It is a saginaw 605 gearbox with a 7819688 casting
number. I want to get a reman gearbox and can't find a GM part number. I would think there is a way to cross reference the casting number.
Anyone been down this road?