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I have finished my battery hooks and got my batteries mounted, and the truck running and driving again. I noticed my voltage meter jumps around a lot with the new alternator. My hooks are made out of stainless steel. They were harder than thought they would be to cut threads on, but it can be...

I did see that. I even thought about doing it, seriously tracking down parts. My only problems with that mod was the cost for me, and the availability of the parts. When I found the plastic boxes for cheap, I went in that direction.

Thankx, The old straight six is 250 chevy. It's part of a project I've put to the side/back burner. Every since I got a hold of my 5 ton, I haven't been interested in doing anything with it except for selling my old project truck (1935 GMC) so I can do more with my 5 ton.

Small update. Here is what my battery boxes and step looked like. This is what they look like now. My next and last step is to fabricate new hooks out of stainless steel. I'm using 1/4" rod, but I haven't decided on 304 or 316 stainless. Here is a "proof of concept" hook I made using my...

The "NOS battery box kit" as I call it, is really called a Polyethylene Battery Box Assembly Kit. NSN 6160 01 318 0763 I found 2 of them on ebay for $40 each. The instructions say it is for M39, M39A1, M39A2, M44, M44A1, M44A2, and M809 trucks. It was really easy to put everything together...

I then test fitted my battery bracket by setting it down in the battery box, and it cleared it just fine. Now, when I get some more time, I'll have to grind/cut down the little humps in the middle of the boxes so my group 8D's can sit flat. The battery brackets are made out 3/16"x1-1/2" angle...

I have finished modifying my new plastic battery boxes. When I first got them, I notice that the top of the sides all curled in just like this. This isn't my truck, but it looked just like this. I don't like that. So I decided to fix it. This involved using two pieces of sheet metal that came...