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So after ten years of trying to collect parts and get the m715 back on the road it's done. First official drive on memorial day which I thought was fitting.
350 small block, power brakes and steering. All new wiring and brake system. XZL's.
It's a completely different truck now.
Much appreciation and thanks to everyone on here who either helped answering questions directly or were willing to share knowledge on the site.
First time trying to put up a pic. Sorry if I failed but thanks again!!
Nice ride. Glad to see it back on the road.
Looks great and it runs! Can't beat that!
Congratulations!!! Very nice!!!
Roll on and enjoy...you have earned it!!!
Appreciate it guys! I'm hoping to get to my buddies farm and his fifteen or so miles of trails and roads around fields, start testing things out a little more.
My first faster test drive got a little shaky on me so it was a quick trip, I was hoping the tires just needed to warm up a little bit, maybe that's not true with XZL's? The rest of the front end seems solid, no clunking from the kingpins, steering box feels tight, linkages are tight.
Only thing I can think of is that it's in the tires somehow?
Any insight beyond what I came up with would be much appreciated as always.
Congrats on getting your truck on the road! It's an accomplishment for sure!
I don't know if this is the correct solution, but maybe the "shaking" was your drive shafts? You can get a vibration if they aren't lined up right. I am told that the yokes on both ends of the shafts have to be correctly lined up where they connect to the diffs or the transmission or the transfer case.
I'll try to explain this right...
On the universal joints there are two caps with clips and two caps that have steel u bolts around them that connect them with a yoke. The u joints on both sides of the drive shaft need to be lined up.
Maybe a image will help me explain this better...
https://imagizer.imageshack.com/img924/3715/3r3r3s.jpg
If you look at this figure from the online manuals, it supports what was said. Please look at the orientation of the yokes. I remember that when I rebuilt my driveshafts (new universal joints) I followed this advice.
Once I got the "death wobble" when my tire pressures were not where they should have been. I have the STA Super Lugs.
Congrats! That's a nice truck. Really worth your time and effort.
Worn brass bushing in the front axle can cause wobbles. Incorrectly indexed brake hubs can cause vibration. Worn out steering column parts can cause wobbles. The above advice on the drive shaft and tire pressures are great ideas, too. Your thoughts on out-of-round tires until they warm up is a good start, since you're only paying for gas to drive it around longer and warm up the tires. As you try and narrow it down the guys here are great on ideas without the negativity. I hope it's an easy and cheap fix!!- gonz
Thanks everyone!
I never took the driveshafts out so I don't think that will be it but I certainly will look them over and see how they are lined up.
Gonz- by brass bushings are you referring to the kingpin bushings? Passenger side tire has a little more lean(camber I believe) than the driver front but everything feels solid still and the test my dad told me about, checking the lbs of force required to steer the tire, checked out. And can you please clarify improperly indexed brake drums? That seems like a likely culprit as I was not aware they needed to be indexed in a certain way, I just put the drums back on so the stupid screws go back in. Maybe I'm 180 degrees off and if so how does one tell?
Unfortunately the driving portion of testing is on hold.
Flat tire up front, been having issues with bad inner tubes, third one that went flat. Actually paid a guy to put them in so I could learn how to change tires on the split rims myself and had three out of four go bad on me. All split at a seam. Aggravating. Thanks for all the input, have a couple directions to go now and will let you guys know what I find.
If it wasn't for this site and support I'm sure I wouldn't be as far as I am with the old Kaiser.
Thank you
These trucks could use a steering damper, IMHO.Quote:
Originally Posted by kyken
My M886 rear shaft was one tooth off when I got it, and it was miserable to drive. It's amazing how little it's gotta be wrong to really mess things up.Quote:
Originally Posted by Direwolf82
I'd start with the free stuff first after you get it road worthy again.Quote:
Originally Posted by Direwolf82
Yes on the kingpin bushings being the brass bushings in question...