Steering box Id.

[Chalkie]

Good evening. My names Stephen I'm from the UK.

I'm currently building up a Model a chassis and i brought a steering box and told it was off a model A. I've stripped as it doesn't hold its oil and I hated the color it was painted I require a gasket kit as previous it was shimmed with gaskets on the bottom for the input shaft. unfortunately I'm not 100% sure that it is a model a steering box thanks to google. issue is I can't find it if I google the part Numbers off it.

on the steering box stamped on the main body is

CRTAAF
3550-A
Ingersoll
Machine

on the side of the steering box where the adjuster is this is stamped

CRTAAF
3580-A

attached some pictures

Thanks Stephen