New rims and tires and uncontrollable

[tarry99]

Make sure you let me know how it rides (not wanders) I have plenty of grey hairs from getting hit by a semi in South Korea when I was much younger - I too do not need anymore - I also would like to see your trackbar build for the front - I think that might be a wise way to go / everything front and rear are new - but - (and a big but) it has 10K on the rebuilt motor, tranny, and SOA - which tells me that in 15 years since the build - no one has felt safe drivin Ole Iron. So I am trying to figure out how to either incorporate a sway bar - run the Rancho 9000's on firm - or...she just has tooo much springyness in the front end.

Corn,

Looked at your pictures again...........and it is pretty hard to tell from my angle but like I mentioned before that caster angle should be checked.... that axle should be tilted back about 6-7 degrees from the top of spindle to the rear ..........also your springs at least in the front look somewhat flat from eye to eye which equals really not much suspension. Should have some arch in the spring to support the weight...........again just looks that way from here.

Rear or reversed shackles as some might say can be a way to soften the ride with the old stiff CJ springs. Keep in mind as your suspension travels in that case your wheelbase gets shorter.
I personally like having them up front where the Jeep engineers put them in the first place and work on the suspension & spring package to mitigate the ride.
Also too aggressive of a shock can also effect driveability.

A stock CJ narrow track sway bar from about 1980 and up will fit on there if your frame width is still 28" C/C but check your axle width first. If it is wider than a stock narrow track then one out of a wide track may also work.

Pretty hard to tune a suspension to be good off road and also compliant on the pavement.

 

[Old Dog]

Just a thought here. I noticed in your vid. and than after looking at the pics here again, that your front springs are mounted real close to the frame where most shackle reversals have the springs mounted a couple few inches down and your shackles apear to be pretty long. I wonder if you have to much caster now. Have you checked it yet?

 

[Cornfed]

Just a thought here. I noticed in your vid. and than after looking at the pics here again, that your front springs are mounted real close to the frame where most shackle reversals have the springs mounted a couple few inches down and your shackles apear to be pretty long. I wonder if you have to much caster now. Have you checked it yet?

I am sure that the caster is off - and I have been wondering about the shackle length - that will be the first thing I change in my quest to get this beast under control on road -

and thank you for taking time to study both the video and pics

 

[Cornfed]

Corn,

Looked at your pictures again...........and it is pretty hard to tell from my angle but like I mentioned before that caster angle should be checked.... that axle should be tilted back about 6-7 degrees from the top of spindle to the rear ..........also your springs at least in the front look somewhat flat from eye to eye which equals really not much suspension. Should have some arch in the spring to support the weight...........again just looks that way from here.

Rear or reversed shackles as some might say can be a way to soften the ride with the old stiff CJ springs. Keep in mind as your suspension travels in that case your wheelbase gets shorter.
I personally like having them up front where the Jeep engineers put them in the first place and work on the suspension & spring package to mitigate the ride.
Also too aggressive of a shock can also effect driveability.

A stock CJ narrow track sway bar from about 1980 and up will fit on there if your frame width is still 28" C/C but check your axle width first. If it is wider than a stock narrow track then one out of a wide track may also work.

Pretty hard to tune a suspension to be good off road and also compliant on the pavement.

Okay the frame width is 28" - the axle width is 56.5" - the shocks are Rancho 9000 set firm - and yes, the leaf springs do look a bit flat - I am only running 15lbs of air in my Super Swamper TSL's

"Pretty hard to tune a suspension to be good off road and also compliant on the pavement."

well said!

 

[tarry99]

Okay the frame width is 28" - the axle width is 56.5" - the shocks are Rancho 9000 set firm - and yes, the leaf springs do look a bit flat - I am only running 15lbs of air in my Super Swamper TSL's

"Pretty hard to tune a suspension to be good off road and also compliant on the pavement."

well said!

Corn, Thanks,

Axle width @ 56" is or should be a wide-track , should also have 5-bolt hubs.
Over shocking any setup is the most common mistake that people make.
Shocks are designed to control the weight at that end of the axle and that it's! They are all designed to work within a given frequency or cycles at a given setting.

Having those tires air downed on the pavement is also contributing to the handling issues.

Think of it this way, as you try to turn and you give the steering wheel the command all of the play or motion in the suspension has to catch in order for that command to take place. The low tires with there sidewalls flexing are OK off road............but not on the pavement.

Basically with the shocks at full stiff and the springs flat you have no suspension except for the low tires.

Everything is a compromise!

 

[Cornfed]

Corn, Thanks,

Having those tires air downed on the pavement is also contributing to the handling issues.

Think of it this way, as you try to turn and you give the steering wheel the command all of the play or motion in the suspension has to catch in order for that command to take place. The low tires with there sidewalls flexing are OK off road............but not on the pavement.

Basically with the shocks at full stiff and the springs flat you have no suspension except for the low tires.

Wow! I aired up the tires to 32psi - and it is a new Jeep!

Very Limited wander - I mean my F250 diesel wanders a bit -

Thanks for taking the time and looking into it - I loosened up the shocks and now I am going to drive over and pick up the wife - she is always the biggest critic! haha -