I know this is an ancient thread but I thought I'd post this info here for any other desperate part searcher like me. I have a 1989 Mallard Overland on a 36 foot type A John deere chassis. Been searching high and low for chassis and steering parts(and brake parts). Learned that the Freightliner MT35(delivery truck) takes almost all the same suspension/steering parts as my RV. Also brakes and rotors. Finally, I was frantic for a drag link. Everywhere I looked they did not exist anymore and the few folk out there who said they found one paid over $1500 used for it. Well, I called freightliner with a John Deere part number(from my chassis parts book) and the fella there ordered me a brand new drag link for $285(total with shipping came to $309). I'm psyched! My RV is in exceptional condition. I dont need the brakes, tie rod ends or drag link that I ordered right this moment BUT I'll have them when I do need em. And it's very comforting to know where I can find most other suspension/steering/brake parts I may need in the future. Like I said, the pads, rotors, and calipers are pretty common fair since the Freightliner mt35 takes all the same. I hope this helps someone out there. Good luck!