It's a Demco model 8250008 which replaces a stock Lippert 1621 pin box found on many Montanas, Mountaineers, and Cougars .... probably more. It's weight rating is 19,000 lbs. 5/8" mounting bolts. Pin Box width 12". Measuring from the center of the pin to the center of the first row of mounting holes is @ 17". From front row of mounting holes to second row is @7 7/8".
It did a good job of reducing "chucking" and is in very good condition.
The only reason it's for sale is it doesn't fit my new fiver and keeping it was part of the deal. I'd be willing to deliver or meet someone up to 200 miles from Wichita, KS. I'm asking $350 OBO.
Pin Box has been sold ... Thanks!