I have been looking on line and asking vendors for the M38A1 battery box since I started on my M170 and finally found a supply.
D.L. Bensinger has them in kit form. Comes with the bottom, trays and box. I am at the point that this is crucial to my project.
He said he had just now started stocking them. Just in time ; not early nor late, for me.
God is good.
After I put them in I'll write the fit up in the vendors section.
