How to get more caster??

[byrdman03cars]

I have a 1970 bronco, just installed James duff 3.5" ultimate suspension package with drop down/adjustable radius arm brackets. I have 7 degree axle wedges, drop down pitman arm, drop down track bar bracket and adjustable track bar. The current readings on the front end are camber left 1.1 degrees, right .7, caster readings are .1 left and .1 on the right, and toe in is .20 left and .17 on the right. The bronco drives fairly well, but still feels super sensitive while driving. I was hoping to get to 4-6 degrees camber. Is there anything else I can to to reach this?
Thanks in advance for your help
Sam

 

[bknbronco]

what axle?n Your on the lowest setting on the radius arm drops?

 

[bentendo]

This is the first thing that everyone is going to say, so I might as well be the first:

Double check your c-bushings. If they're in backwards, that is the source of your extremely low caster.

If they are in correctly, I highly recommend you go to this thread I started earlier this year when I was having the EXACT same problems:

http://classicbroncos.com/forums/showthread.php?t=203580

 

[Bronco Junkie]

Before you installed the C-bushings did you cut off the little do-hicky on the apex of the bushing??

 

[Broncobowsher]

The bushing/lift combo sound correct. These trucks were built with very little caster to begin with. With the 3½" lift and 7° bushings you are probably real close the maxing out the U-joint angle of the front driveshaft at the front axle. At this point remove some corrective bushing angle to help the U-joint angle, this will make caster much worse. then do a cut and turn of the outer "C"s on the axle tube. Anything else will be one problem chasing another.

 

[ericbee]

When I had this problem I installed drop radius brackets and that fixed my problem. It increased my caster by 4-6 degrees instantly. The only other thing I can recommend for you to do now is cut and turn of the outer "C"s on the axle tube.

 

[bad 68]

Before you installed the C-bushings did you cut off the little do-hicky on the apex of the bushing??

not my thread, but, what the hell are you talking about?

 

[bax]

Some long arms will help too.

 

[Broncobowsher]

not my thread, but, what the hell are you talking about?

Installed bushings many times, I have no idea what he is talking about either.

As far as long arms or dropping the rear radius arm mounts they both accomplish the same thing. But you really need to watch the front driveshaft U-joint bushing angle as either will make the angle much worse.

 

[xcntrk]

There's a couple other options to add the list of recommendations above:

You can install those eccentric ball-joint sleeves that can add +-1.5 degrees (minor amount).

Also you can modify your housing and rotate your knuckles which is the ultimate fix but very laborious...

 

[Bronco Junkie]

not my thread, but, what the hell are you talking about?

When I installed my lift kit...I was supposed to cut off a littlle piece of extra material that is left over from the mold right at the apex of the bushing. It clearly says to do that in the instructions. I did not do that and the bushing did not seat correctly....we took apart...cut off the piece and it is fine now. Lift is from James Duff.

 

[Bronco Junkie]

This is what I am talking about.

 

[bad 68]

This is what I am talking about.

Must be specific to Duff C bushings. You won't find that on most other brands.

If you have 7* bushings installed corectly with drop brackets you should be at least in the 5* range it seems. Maybe they sent you the wrong bushings??

 

[garberz]

The bushing/lift combo sound correct. These trucks were built with very little caster to begin with. With the 3½" lift and 7° bushings you are probably real close the maxing out the U-joint angle of the front driveshaft at the front axle. At this point remove some corrective bushing angle to help the U-joint angle, this will make caster much worse. then do a cut and turn of the outer "C"s on the axle tube. Anything else will be one problem chasing another.

I bet if you flex it out, it's already there. You should check this out if you plan on using 4WD.