Okay, I know I've been through this before but... Took me a long time to set the cab level and centered on the frame. Front was easy. The rear was a bear and I finally wound up using a 1/2 inch shim on the driver side to get the height almost (but not exactly) perfect. As the weeks have gone by since that time, the rear of the cab has shifted once again and it has moved laterally towards the driver side and sagged on that side as well. Now I'm no heavyweight at 170 lbs. so I know it's not my girth (at least not the girth around my WAIST). I rebuilt the stock cab mounts with new rubber bushings from CP and I'm wondering how does one get the rear of the "floating" cab to STOP floating and stay put on the frame? It would seem that the shackle type rear cab mounts are shifting and the cab is just moving over as the shackles shift. Any suggestions? Andy
Silk Purse From A Sow's Ear From my view , this isn't a problem as it'll wobble about and return to more or less correct position as you drive it ~ the whole idea of the silly mounts is to allow the rear or the cab to ' float ' above the frame somewhat.... As much as I love the AD series of GM trucks , one must remember : they were made as low cost tools and the poor quality control is most evident in the way the bodies were simply thrown to-gether ~ wait'll you try to align the doors and then make 'em close easily ~ you can make 'em look good or work right but rarely have both in the same truck . I assume you measured the frame whilst the cab was off ? most of them are bent so the left side of the truck always droops a little bit .
Big Duh!!! Oh Yeah. Forgot about that. Gonna leave it be. I set it once. I am sure it will return after it rolls around a bit. Probably shifted from driving it forward and back down the driveway with the kids. Driveway leans to the left. Now the cab does as well. Andy
Yeah, the left side of my truck droops a little bit for sure. The springs in the front on that side have sagged. I went over this in a previous post. Just would like it to sit somewhat level when it's done. Is it problem driving it while it's sagging on one side? Andy
If it sets low on the passenger side, you'll never be able to go straight. You just drive in a B-I-G clock-wise circle throughout eternity...
Sagging Left It never has been for me nor any of the work trucks I've seen/used/worked on over the years.... -Nate
Vacation Taking the kids upstate New York for a week to go fishin' and funnin'. Talk to y'all later next weekend. I'm sure I'll have a lot of posts to catch up on. Andy
Have a blast! Catch a bunch of fish! But more importantly, catch every smile on your kids' faces and treasure them forever. My baby is coming over for supper tomorrow night. Bringing the grandson! Can't wait. BTW, she's 27 now and the pride of grandpa's eye just turned 3! Time slips away! Hold on to it with Vise-grips!
Andy, I know you asked the time and this is like the history of clock making but it might be something one could use in the future. This is a pic of the cab mounts from the A-D Engineering S10 frame swap kit. They are taller and bigger overall than what one would use to replace the shackle type factory mounts but something along this line would work. They bolt to the frame (ones shown just have one temporary sheet metal screw) and the white polypropylene spacers on the rear mounts can be trimmed to level the cab. The S10 rubber biscuits isolate a lot of road noise. Actually pretty clever. What Nate said is so true, these trucks were in a time that people had been cut off from everything by WWII and had money in their pockets. Fertile ground to gin out vehicles with flaws cause they were sold as soon as the last bolt was semi-tightened.
