Tim,
I may be wrong but I recall Chevrolet literature referring to the space under the seat cushion as a "tool box". I am not aware of an actual box or something extra to store tools. I keep the jack, handle and fire extinguisher under the seat in that space. This is all sitting on an old towel to keep things from rattling. I like your heavy canvas bag idea.
Kent

P.S. I found it. Page 21 of my 1951 Truck Data Book Model 3104 Tool Box--Under Seat, 50" x 19 1/2" x 6"
It is listed for all the models with a cab as standard equipment.

Last edited by Lightholder's Dad; 05/23/2020 5:04 PM.

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