I have a gage voltage limiter [IVR] that i bought for my 77 truck with the printed circuit board. Should be the same as for a 71-74 B- body as far as i can tell from some research. 5 volt press in style.
The limiter looks like it has the "brains" inserted into the casing and crimped to it upon assembly. Compared to the factory unit [ also pictured ] and their website picture, it looks like the "casing ground pin" location is 180 degrees backwards from the factory unit. In other words i think the internals were put in 'backwards'. I can't find any reference pics of a factory unit assmebled like the one i bought.
You can tell it was crimped together with a special tool, so i don't want to attempt to pry it open and switch it. I am ham fisted enough as it is...
Having a hard time getting a hold of the manufacturer/ seller. I realize they are a part time business, but i've been attempting to get ahold of them for almost a month, and their phone mailbox is always full, and e-mails get sent back with no answer.
Thanks, Picture attached.