I'm trying to do some underhood cleanup, and change some things before the car shows start up this spring/summer. One of them is to change my rusty looking brake booster and master cylinder. The boot inside the cab is almost gone too, don't think that matters. But I was looking to buy a remanufactured one. It appears that's the only way to get one. When I look at the Mopar parts catalog there is two part numbers with the sales codes -TUT or +TUT. No idea what TUT is? It's no where on the copy of sales codes I got from Chrysler. Wherever I look up to buy a booster it only shows one. I can't get any numbers off of the original decal on my original booster because previous owners sprayed black paint everywhere. I'm afraid if I wipe it off the printing will come off too.