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... with the hubs locked and transfer case engaged 4WD, I have some pretty strong vibrations coming from the front shaft. It almost feels as if it is grinding. The vibrations only occur at speeds over 35 MPH and only on deceleration. I do not have any vibes at all when I am accelerating up to speeds of around 65 MPH. I can actually make the vibrations stop if I press on the brake while maintaining some throttle input. If I just release the accelerator and coast to slow down, that's when the vibes are the strongest. ...
This behavior is often indicative of a bad u-joint or slip joint.
I'm not saying it's not something else, just that noise on decel is a classic symptom of u-joints or the slip joint. Is there play in the slip joint when you push on the shaft laterally?Shaft was just rebuilt with Toyota U-joints. You don't think it's the angle of the pinion? There were no issues/vibrations at all before installing the Slee arms.
Hey nugget, I currently have the slee blues with 3 inch one lift and find the truck a bit twitchy, do you thimk I could just add the man 2 inch drop bracket and get this ride to have better hiway manners? Would be great to not have to punch out those bushingsThis is actually turning into a great thread keep it comin guys.
I had the OME yellow caster bushing plus the MAF drop bracket & it drove like a dream. I figure I was at around +5* derees. Since then I have stock bushings in there & I want my 5* degrees of caster back.
Last time I checked Slee arm correct 11* degrees 8+3=11
Here is a chart I found that is consistent with what has been written above posts.
View attachment 1720395
The Mud world would appreciate you letting us know how your rig drives and the castor numbers with the new set up.
Here's the new caster numbers with the OME/ Slee control arm setup. I think my height from hub to flare is right around 23". Right where I thought I'd end up as far as caster readings. The front drive shaft is not happy at these angles. I'll see what it looks like after the Slinky springs are installed. Maybe a bit more lift will help the front shaft angle, but I'm guessing DC shaft will be necessary if I want higher speed 4WD. I'm part time, so not sure that I'll even bother with it.View attachment 1730524
Just a FYI Superior makes radius arms specifically for 2", 3", 4", 5", and 6" lifts. May not be cost effective to get them shipped to the US from AUS, but just throwing the options out there.
Normal radius arm design:
Superior Radius Arms Suitable For Toyota Landcruiser 76/78/79/80/105 Series Pre 07-2016 | Superior Engineering
Superflex design:
Superior Superflex Radius Arms Suitable For Toyota Landcruiser 80/105 Series | Superior Engineering
I've went with the Black Mamba Drop Boxes as posted earlier(2" drop 12mm forward for 3"-4" lifts), but if I ever go up to a 6" lift I'll be using a combination of that and either the 2" or 3" Superior arms.