All Pro U Bolt Flip Kit question

I just tried to install the U-bolt flip kit from all pro but stopped and went back to the stock u bolts for now. I was under the impression that this was a simple replacement. Guess I was wrong.

Here is my question, did anyone else who has installed these require an act of god to get the nuts tightened down completely on the bolts?

Because the nuts I was supplied from all pro refuse to thread on past about a half an inch before requiring the use of tools. But even with ratchet on it, it was still stubborn as hell. Battery powered impact gun was useless as well. And I dont have pneumatic tools or I would have tried that. Though I am not convinced that they would have been too much more help. Any input in the matter is appreciated. Thanks in advance.

 

threads are fubard

should be able to thread the nuts on all the way down to the plate by hand. If you can't get them to seat snug to the plates even with a ratchet then the threads are ruined, you either cross threaded them or they were messed up to begin with.

Edit: Unless they're nylocks. But then they should still go on without too much effort.

 

Check the threads see if they are messed up and if they are chase them with a thread chaser. If the nuts have a nylon locking ring do not chase them get new nuts if the threads are jacked.

 

OH and if it does have a nylon locking ring they will not go on hand tight once you hit the nylon you will have to use a wrench. thats how they are suppose to be.

 

I don't know why AP doesn't supply instructions with the things they sell .

The flip kit is easy to install. The nuts they use are meant to never come loose from vibration. They also do not require excessive torque to keep things together. That is a benefit when using them with springs that contain teflon shims. Very well designed piece of kit.

The nuts however will gall and seize if you attempt to install them without lubricant. If you continue and try to cheater bar them on you will damage both the Ubolts and the nuts.

Try it again and this time spray the bolts and nuts with WD-40. That is all it takes. Get them down good and snug and stop. Drive the vehicle to settle everything and recheck for snugness. You don't want or need too much pressure. The nuts will require effort to screw down, but they should not seize or bind. An ordinary 3/8 ratchet is all you need.

Make sure to draw all the bolts down evenly. You should end up with equal amounts of thread above the nuts. On a stock application you will probably want to cut off the excess bolts sticking up. Leave at least 1/4 to 1/2" above the nut. The bolts are designed long enough to be used with their thicker packs.

AP should just print this out and toss it in the box from now on. You aren't the first to need help.

 

These kits use a high pressure deformed locking nut. What happened to the OP is normal without lubrication. Most likely nothing is damaged unless he pulled so hard that the Ubolt rods were twisted. If that is the case they should be cut in half and not used. They are strength compromised. I doubt he did that with the tools he has.

 

yah mine were shipped with nylon nuts it is a simple quick swap

 

http://www.tacomaworld.com/forum/2n...timbren-u-bolt-flip-kit-install-problems.html

They don't look like nylocks or any special nut.



I've never heard of a locking nut that locks before you tighten it down. I can understand that a lube will help prevent galling on a nut/bolt with rough threads but I'd like to know more about this hardware.

Not that I don't believe you, I'm genuinely curious.

 

Thanks for the input, I'll try wd40 when I try again. But to clarify, I stopped tightening to prevent damaging anything. And I know they were not cross threaded. And they are not nylocks. Although they behaved the same. Not sure that wd is gonna help though.

 

Use anti-seize it is a product designed specifically for this type procedure WD-40 is a sorry excuse for lubricant/penetrator

 

I never had this issue with mine. Did you get their shock mounts, too?

 

Also I tried the nuts that I took off of the stock u bolts on the all pro u bolts. They did the same thing. So I'm thinking its the bolts.

 

I wouldnt use anti seize unless there is some sort of lock washer or a way to stop the bolt from making its way loose.

 

no, just the flip kit.

 

It's not the bolts. The All-pro Ubolts are 9/16 not 14mm like the stock bolts. That's why the stock nuts won't fit. They are .012" too small. You can force them on if you try hard enough because the thread pitch is nearly identical, but they are not the right nut.

The nuts that come with the AP kit are deformed. If you look into the nut you will see that the hole is not round. This type of lock nut is typically used in high heat applications. It is a very heavy duty type of lock nut and provides much higher locking force than a nylock. They must be lubricated to install. Only a light lubricant is required. WD-40 works fine. They will be snug going all the way down, but they should not seize up or bind. They won't if you lubricate them. There is nothing wrong with them. I have these on my truck.

last post....

 

Guess I should mention I'm not using stock u bolts, I'm using the ones that came with my icon kit. The threads match the all pro bolts. They should thread on all the way but do the same thing as the ones that came with it

 

Got them in yesterday. Air ratchet, impact gun wd40 and elbow grease finally prevailed.

 

It always does

 

I ordered the top plate for timberens and then just drilled holes in the stock bump stops and bolted them on.

 

Sit your purse down before install....lol Just kidding those things are a b!tcH with out lube and The Force