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Trailer springs must be replaced occasionally. We think you are past due for a new set, which will prevent your bottoming out. This is a common issue for older trailer springs and vehicle springs. Yours are now over 15 years old. BCB
Probably some slack with your hitch along with the tongue of the trailer which has pressed in to activate your brakes.
The solenoids can leak fluid and the springs in the coupler keep it tight, though slop when stopping is from low fluid. Check the fluid levels and your ends of lines for leakage. We think it is probably the fluid low. Though the hitches also get pin slop and holes get worn oblong in the miles you have.
I would qualify as the frequent rookie here but I asked the ufp folks about the same issue on mine(I think). my pressure is good on stops but when I release the coupler I get a fair thunk too. the guy in cali told me there was a shock that gets flat spots in at at times that controlled the coupler release and thought that was my issue. recommend a shock change. does that make sense yall? I assume the “shock” and the solenoid are different in there?C.O.D. Jr. III
Yes the shock has caused the sloppy stopping experience. Though it could be a combination of factors.
I did a search and found the UFP instructions for checking everything with the coupler. It all looks pretty straight forward so I will give it a try. In the instructions it says to not mix brake fluid types. Is the stuff thats already in there Dot 3 or Dot 4? And along those lines is there a brand that is better then the rest?
Im pretty sure its dot3.C.O.D. Jr. III
When the springs, spring eye bushings, bearings and everything wears out it has no place to go but to sag, or bend the axle/spindle on impacting potholes, etc,,,,, Probably worth tearing down and replacing the springs, and all related components,,,,,and the parts are relatively inexpensive. most good trailer shops carry the springs, bushings, bearings, races, and brake parts. Good luck, and by the way BCB carries parts as well ! D.
Bent axles from a drive up window are common occurances. Since this is a 1991, you probably are not the original owner. Things like this may not be from your ownership. We have selodom seen one bent from anything other than impact. BCB
You are right I am not the original owner. ” drive up window” you lost me on that one. lol also if the axle is bent how do you check it and if it is can they be repaired ? thnx mark
They can be tweaked by a front end shop that is set up to do Twin I Beam suspensions. Though often they are beyond that. Drive up windows have a curb on each side and they are often too narrow for a trailer. They are set for passenger cars. Thus the wheels hit on both curbs as you squeeze through in between them. Often making a treacherous noise! BCB
Yes they can!
I cant tell by your trailer if it is a single axle or a duel axle, I know the P4 trailer the front wheels are a little offset from the rear though it is not even really noticeable. I would check all your lugnuts, if they are tight then i would jack that side up and cehck for play in the wheel by rocking back and forth from the 6-1200 position, If all seems tight I would think you are good to go. You dont have any uneven tire wear do you??
You probably turned the boat to get there and that amount of camber at times I believe is normal.C.O.D. Jr. III
Pull it forward a bit and see what it looks like. If it still looks out of whack…Id jack it up and see if you have any play in the wheel hub. If hubs okay, maybe you ran over something towing and either the axle or spindle is bent. Ive never seen a Cat trailer with any wheel alignment issues….other than if your towing and make a hard turn…then the front axle tires will appear out of round due to the stress of turning…which then go back to normal when you straighten up.
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