wakawaka

Not really answering your question but my truck occasionally has the same delay when shifting from reverse to drive too - sometimes bad enough to chirp the tires which is a real treat in a busy parking lot. I took it to the dealer at 20K and was told it's normal and GM won't do anything about it. 40K miles later I'd say it's about the same, if not slightly worse. Really my only serious complaint with the truck.

I also would like to buy one of these boxes but the OP is busy and not building them anymore. If anyone still has one they haven't installed yet could you grab the measurements off it? It would definitely save a lot of time to be able to build it without having to remove and measure the console. Thanks.

Looks like a nice design. Next time you build some more put me down for one too.

Received mine today too. Thanks for setting this up!

I'm in for a set of Sierra fogs.