You are correct! Those two screws were not on the instructions.. Also, anyone who has the Diesel version, your are supposed to remove the DEF tank to get the trailer hitch bolts put through the frame. With some help from a friend you can do this without removing the tank. Just have someone pull the tank to the side a little and you can get the torque wrench in there to put in ALL THREE BOLT on the left side! If you noticed, the towing capacities of the diesel are less than the other two engine models. The reason is not because of the power ( the diesel pulls like a mountain goat), it is because you supposedly can't install all 6 mounting bolts (3 on each side)b, but only 5. But I found a away to do it. The problem lies with the position of the DEF tank. It sit against the underside of the frame where the mounting bolts rest. What I did was shim down the DEF tank with (I think 5 - 1/4") plastic spacers to drop the tank down just enough for the DEF tank not to rub on the heads of the mounting bolts. 5 small bolts support the DEF tank, one spacer for each support bolt did the trick. Poor design on GM's part. Works great.[/QUOTE]
did you have to cut your bumper? and were you able to see that nothing would rub when doing that? it seems gmc has discontinued the hitches. ordered one from a gmc parts house and they cancelled the order 2 days later so i went to ebay. cost me $30 more total between that and the cutout fascia piece.
SO IF YOU WANT AN OEM, ONE YOU BETTER BUY EM UP!!
2018 Terrain Diesel SLE
2012 Acadia SLE
too many formers...2014 Passat/2000 Jeep Cherokee Sport 4dr, 2.5 Rubicon lift and all them goodies/1993 Mazda 626/2000 Ford ZX2 tuners, pulleys, cai, lowered, ricer style lol