LMTV Group 31 Battery mod?

[Dexis]

Anyone have a link or description of the process required to modify the battery compartment on my m1078 to properly house a pair of group 31 batteries?

I tried searching but i’m not sure how to work around “31” not being accepted by the search function, and with that I kept coming up short.

 

[MugOfPaul]

Not a direct answer to your question but I find a targeted Google search far more effective than the forum search. All you have to do is include `site:steelsoldiers.com` in your query. I also usually add "FMTV" to cut down on the CUCV and HMMV results

`site:steelsoldiers.com FMTV group 31` yields:

Google Search

And I quickly found this from there: https://youtu.be/utEPJToFO7s

 

[Ronmar]

You must remove the inner battery pocket tray and replace it with a flat plate. You must cut the pockets out of the lid to make enough height to fit the group 31’s. If you cut carefully the bottoms of those pockets can be carefully cut to fit flush in the holes left when cutting the pockets out and then epoxied into place and sanded flush…

 

[Mario]

I didn't cut anything out. Simply placed the batteries in the box and use extra space in front to store cut pieces of landscape railroad timber that I use as cribbing when I get flat tires.

 

[Ronmar]

I didn't cut anything out. Simply placed the batteries in the box and use extra space in front to store cut pieces of landscape railroad timber that I use as cribbing when I get flat tires. View attachment 951334

those are group 24 batteries, not groupe 31's they are smaller...

 

[hike]

We are still working on final fit and finish, though four 31's fit without cutting out the tops, just the bottoms cut out. The tops help hold everything in place. A working, running concept proof of fit for two 2 - 31 in series battery banks in the box with a standard lid—

 

[Mario]

those are group 24 batteries, not groupe 31's they are smaller...

Yup. Work just fine. Down to about 20°F

 

[HookEm]

I used the smaller group 34, just 2. Haven't had any issues but also just did this tonight, YMMV. Only had to make 1 custom cable linking the two batteries, facepalm moment when I could've bought an off the shelf battery cable vs the hydraulic crimp tool and 40 ft of 1/0 cable... oops.