tire lean with ford 60 front

jeepin1995

jeepin1995

undecided......
Joined
Oct 21, 2006
Location
Cary (raleigh) nc
just bout finished with my 60/60 swap in my YJ..... got it on level ground and it seems the front tires lean out just a little on the top (they are even, one isn't any worse than the other)..... is this normal??? i'll attach a picture, maybe you can see it.

ai36.photobucket.com_albums_e50_jeepin1995_100_5862.jpg
 
king pin 60 or ball joint 60?
 
depending on what vehicle the donor axle came out of and what the original pinion angle was set at in relationship to the housing ends. if the housing ends were welded on with a very low pinion angle for the original vehicle and you had to roll the pinion up to get proper joint alignment that can cause it. never seen it with a 60 but about all scout 44s will do it. the camber (tilted in or out at the top) is not as much of a problem as the caster angle being off. the caster being out will cause your jeep to handle awful driving on the pavement. if thats the case it is not that big of a deal to fix. cut the housing ends off and reweld them back on tilted back to the rear at the top to regain the proper caster angle.
 
kingpin 60..... out of a 78 F250 snowfighter truck..... didn't redo the spring perches..... drivers side is cast in the housing, so i reused what was factory and outboarded my springs to fit.....
 
So what's the caster?
 
My 88 Kingpin is like that, and every other 70's/80's D60 front I've see is like that. My jeep handled a little better with the stock axle and positive camber, but my lap times didn't drop when I put the 60 in, so I guess it doesn't matter.

Even the Ford 2wd truck from the same era had the same tilt to the front wheels. If you start looking you will start noticing it. When I first did my swap I thought I had done something wrong, but no.
 
Did you put the spindle shims in wrong?
 
i have seen shims to corect the camber angle on dana axles but have no idea where to get them. they bolt between the spindle and the knuckle. btw usually when you have an issue with kingpins being worn the camber angle leans the top of the tire in instead of out. remember that the caster angle is much more important to highway handling than camber is. caster angle is what causes you to lift the weight of your vehicle when you turn and causes your steering to return to center and track straight. i just noticed you rebuilt your kingpins. you may want to look and see if the pins have an eccentric that will give you adjustment for camber angle.
 
The kingpin threads into a hole on the upper part of the C. The lower bearing fits into a bore that is inline with the upper hole. You could weld closed the holes and rebore everything, but that would be awfully difficult to make right, even with good equipment.

The spindle bolts flat to the knuckle, and the spindle has an extrusion that centers in the bore in the knuckle. You could have a shim machined to go between the spindle and knuckle, but you would need to clearance the spindle or the knuckle to account for the change in angle.
 
Rather than use a shim to try to compensate the best thing to do is find out where the problem is. If you take off the spindle is the verticle part of the knuckle striaght up and down?
 
jeepinmatt said:
You could have a shim machined to go between the spindle and knuckle, but you would need to clearance the spindle or the knuckle to account for the change in angle.
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They're pretty common. There have been spindle shims in most of the ones I've worked on. No need to mess with the spindle. The knuckle boss is a slip fit, but not that tight.
 
it may have eccentric lower kingpin caps as mentioned before. caster will not effect the camber as shown in his pictures
 
This might not matter, but that axle is spec'd from dana to have significantly more weight carried by it than the jeep could ever think about weighing. Could that be contributing? Has anyone ever jacked up a factory dana 60 application to see if the axle unloads and slants the tires like in the pic?? Just my .02.
 
braxton357 said:
Uhh... how do you figure? Maybe not with the most likely small caster change he's made from stock, but it can certainly happen.
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with the tires pointed straight ahead caster change will not make them lean that excessively unless the toe is way out.
 
Metto said:
with the tires pointed straight ahead caster change will not make them lean that excessively unless the toe is way out.
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what ? :confused:

camber is tilt in or out from the side of the body.

caster is tilt front or back of the body
 
just for clarification caster DOES affect camber and they can both affect toe. when a professional does a proper alignment you always adjust caster (if poss), camber, and finally toe. adjusting in any other order can throw off the alignment.
 
jeepman13 said:
just for clarification caster DOES affect camber and they can both affect toe. when a professional does a proper alignment you always adjust caster (if poss), camber, and finally toe. adjusting in any other order can throw off the alignment.
Click to expand...

toe is usually set within .125" of straight ahead on most stuff. when the wheels are turned, caster begins to effect camber. when they are straight ahead it is not possible for caster to effect camber more than the aforementioned .125". i am familiar with how alignments work and i have even done a few myself on the alignment rack :rolleyes:
 
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