Carrier Bearing Drop Kit or Axle Shims or both...

I have minimized it but was hoping to eliminate it. In order to get the shaft in straight line with transmission is impossible. I’m trying to get it in the straightest line possible at this point.

 

This is very informative. Thank you. Just listening to this makes me think there’s no possible way to take all vibes away by just adjusting the carrier bearing.

Reminder I only put a 1” spacer in the front and a 1” block in the back. The only vibes I have are at take off. Very minimal with the slight carrier bearing drop of about 1/8”. I don’t want to go through the trouble of taking the u-bolts and and leaf springs apart again to put shims and still possibly have the slight vibes. I want it to go away but it’s so minimal I almost think I’m done messing with it. If it’s not something I can do on my own at this point I don’t want to do it. How hard is it to add leaf spring shims and do you think it would be worth it?

 

No harder than installing the lift block.

If it's just a slight take off shudder, it's probably just initial axle wrap screwing up your working angles. Lift blocks make it worse; 1" is pretty mild though. Then again, stock springs are weak sauce.

If you have the ability, film your pinion and springs. You might be surprised how much movement there is and decide trying to eliminate the shudder with working angles is futile.
For shits and grins, I'd film the carrier bearing too.
Plenty of videos on YouTube as well...

 

I definitely didn’t notice it until after I put the 1” block in the rear. Only reason I put them was to raise the back a little higher than front bc putting the 1” in the front caused it to squat a little. It looks freaking great now.

When I put the old man emu carrier bearing drop spacer it made it worse. It was actually bad at high speeds too. I took those off and added a small washer an it seems to be the best so far. Minimal at take off and smooth at higher speeds.

If it’s actually axle wrap then I guess I’ll take it to the shop that installed my rear blocks and have them double down on the u-bolts to make sure they’re tight enough. Again it’s so slight I could probably forget about it if I knew it was not harmful and can’t be remedied. I’m just the type that if I know something isn’t right then I want to fix it. Possibly last question. Would shims correct axle wrap?

 

No. It would make it worse if anything; much like the blocks. Essentially, it's creating a longer lever between the axle and leaf spring.

Tight is tight; I wouldn't get too crazy with the u-bolts. Axle wrap can be minimized through stiffer springs and/or traction bar(s).

 

Ok I appreciate your help. I think I’ll just leave well enough alone for now. I love my truck but it has 115,000 miles on it. I think I’ll just let it be.

 

Would you have concern about the slightest shudder? I don’t off road at all. This is a 2 wheel drive simply for looks.

 

Personally? Yes; I'm ocd about that kind of stuff. If I had a problem I knew was related to working angles, I'd just get a one-piece double cardan shaft and be done with it.

Didn't realize you had 115K...
Of the things relating to the shudder, you're getting to the kind of mileage to probably start thinking about failing; u-joints, leaf spring bushings, carrier bearing...

 

It’s mostly

yea it’s literally mostly hwy miles. Other than that shudder it rides nearly the same As it did new. In fact I drove a 2017 Nissan Frontier when mine was getting minor body repair done from a fender bender and I hated it. Would rather have my 6 year old tacoma. What kind of cost is associated with a 1 piece shaft? Those repairs you listed easy to do or a mechanic needs to do it? I’m a shade tree at best. Again this shudder was non existent before I put the 1”
Rear lift block. Also it could be that I was extra cautious to feel it bc I had already read it could happen.

 

Might I add that it’s so slight only I notice it. No one else has at all.

 

For the most part...
I did all that stuff on my '07 having never done it before. U-joints were probably the toughest; would have been a lot tougher without the arbor press.
I'm not saying throw money at it; just keep it in mind.

If it was fine before the block and it really bugs you, I suggest going about measuring and adjusting the working angles as described in the video. What you're doing now is trying to adjust a two-piece like it's a one-piece.

 

This is off topic but since you guys are so knowledgeable. Do you know how to eliminate the bump after stop? That’s even more annoying and it seems to be getting Worse.

 

Is it

Is it possible to get a carrier bearing lift? After much study with angle finder it seems if I were able to raise it a little it would correct my working angles and I would be good. I took all the washers out and am back to factory carrier bearing mount. No spacers. I will drive again tomorrow and see how it goes.

 

The only thing I know of, is the Inland Empire poly bearing kits. IIRC, there is a way to mount it up higher.
https://www.tacomaworld.com/threads...uy-iedls-polyurethane-carrier-bearing.421410/

 

How do you take the shaft apart and then put back together? I also have to figure out the bump after breaking or coming to complete stop. Those 2 things and I’ll stop complaining.

 

I don't think you're complaining...no worries.

https://www.tacomaworld.com/threads/replacing-center-support-bearing.241190/

The bump might be the slip spline binding. Usually lack of lube or pressurized from lack of relief hole.

 

Ok. I have no where to lube it. Where would the relief hole be?

 

That's the thing; there is no relief hole. You have to drill one.
To lube it, you have to drop the shaft and seperate the slip spline. It''s under the rubber boot.
See why I'd prefer to get a one piece double cardan?

 

Sounds very difficult. Are either of these two issues that I’m describing going to Pose any detrimental damage to my driveshaft or truck?

 

OK in order to get my driveline shaft in line with the transmission or to get the angles to be the same I would definitely have to lift up the carrier bearing. Is replacing the carrier bearing something that will take vibes away? Has this already been answered I’m sorry.