I have done a little research and found that filling the driveshaft carrier bearings would help with longevity of the driveshaft and take out some of the "slop" in the drivetrain. I was wanted to know the proper way of filling the carrier bearings? Or does anyone make a better carrier bearing that I can use?

My driveshaft is all original from 1990 so I'm definitely in need of a full rebuild as well.

On-line Product Catalog:#3M

Give it plenty of time to cure and either support the driveshaft if you're leaving it on the car, or remove it completely so the driveshaft is on center with the brackets.

dSt DIYMMI Do It Yourself Motor Mount Inserts - Liquid Urethane Made by dSt

If I were to take on this project that would be what I would use.

I would first remove the carriers and make sure they are still in fair shape or at least the rubber is still in the proper shape.

If so I would drill out as much rubber as I could get away with paying close attention to making sure it retains the same shape.

After I would setup my carrier for the polyurethane by completely sealing one side of the carrier with duct tape, when you pour the polyurethane it's only slightly thicker then water. It's suggested by energysuspentionparts that you use sand to hold the piece your making so it stays level and any drips through the tape will be minor then they can easily be trimmed later on.

They suggest 24 hours to cure but I usually allow for 48 just for good measure in a warm space. If done correctly it should be a solid polyurethane carrier.

Here is a picture of one of my motor mounts made with this product

Awesome. Thanks guys. I'm going to place the an order for the liquid mounts today.

Quick question. It says in the instructions that you need sand. What is that used for?

I have used 3M Window Weld on motor mounts many times with very good results!

However! Many people who have filled in the driveshaft carrier bushings with Window Weld reported undesirable vibration. Some recommend using much softer (than 3M WW) RTV silicone, like the soft stuff that you can buy at Home Depot. I would do some more research before I fill in my carrier bearings...

Yeah I wasnt really sure if I wanted to do it. I wanted to get some input from some of the guys that have done it.

I might just replace the carrier bearings with new ones and call it a day.

Why not just get these and be done with it? STM: TORQUE SOLUTION DRIVE SHAFT CARRIER BEARING SUPPORT BUSHINGS | EVO | DSM | 3000GT

Ive never seen those. They look pretty nice. You have any experience with them??

I just ordered a set for my gvr4 actually! Mine are all torn up and I can feel the vibration. I plan to launch this car pretty hard so the torque solutions inserts are perfect. I'm sure there are plenty of others that have used them on here with great success! I have a few friends that use them and havnt had a single problem.

Dsmkauai said:

I just ordered a set for my gvr4 actually! Mine are all torn up and I can feel the vibration. I plan to launch this car pretty hard so the torque solutions inserts are perfect. I'm sure there are plenty of others that have used them on here with great success! I have a few friends that use them and havnt had a single problem.

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Awesome. That may be the route I take then. How are they with daily driven cars?

Can someone link me to instructions on how to fill these bearings? I plan on pulling my driveshaft off this weekend and rebuilding it. The vibration is getting worse and worse.

Or do you guys think the stock carrier bearing assembly would be just fine?

I would just buy new OEM carrier bearings. Jafro has a whole series on rebuilding the driveshaft, check it out.

[ame=http://youtu.be/vDl4TCJpgZ8]Driveshaft 101 - Parts, Tools & Tips - YouTube[/ame]

[ame]http://youtu.be/LJLuzkJ4X20[/ame]

[ame]http://youtu.be/JurluoSxJHI[/ame]

Thump Fix Carrier Bearing

This and other How-to's still exist at

VFAQ Site - Visual Frequently Answered Questions



Those how-to videos from jafro are really nice as well though.

Thanks guys! That helped out a lot.

What kind of power is the stock driveshaft good for?

Many have ran 9's on unmodified, stock driveshaft... That is 600+ whp...

Dsmkauai said:

Why not just get these and be done with it? STM: TORQUE SOLUTION DRIVE SHAFT CARRIER BEARING SUPPORT BUSHINGS | EVO | DSM | 3000GT

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Be done with what? Those only replace the rubber bushing/washers that bolt the carrier bearing under the car. If you have worn out carrier bearings, these won't make any bit of difference. You'll have a more rigid mounted, still broken carrier bearing.

-red97rum- said:

Be done with what? Those only replace the rubber bushing/washers that bolt the carrier bearing under the car. If you have worn out carrier bearings, these won't make any bit of difference. You'll have a more rigid mounted, still broken carrier bearing.

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Haha, pretty much, .

Thanks guys.

I was thinking about buying this one 1991 Mitsubishi Talon AWD Drive Shaft - Mitsubishi Talon AWD Driveline - Free Shipping would that be just as good as a factory drive shaft? If not I will just rebuild mine.

First, the price is crazy. You can nearly afford a DSS aluminum driveshaft for that coin. Second, they probably did not use OEM parts to "remanufacture" it, so no not as good. If you decide to fully rebuild your driveshaft the best bet is to invest in new OEM carrier bearings and new OEM u-joints. The cheapest way to get OEM u-joints that I'm aware of is to invest in the yolk kits. Check jnztuning.com for the parts.

Sorry at the time I Didn't notice it says support bushing my bad! Thought it was a insert like a prothane motor mount insert. Anyway looks like you will need new carrier bearings if you don't do the fill mod. I wouldn't even bother and just find new ones that way you know they will hold up for a while.

SBstar said:

First, the price is crazy. You can nearly afford a DSS aluminum driveshaft for that coin. Second, they probably did not use OEM parts to "remanufacture" it, so no not as good. If you decide to fully rebuild your driveshaft the best bet is to invest in new OEM carrier bearings and new OEM u-joints. The cheapest way to get OEM u-joints that I'm aware of is to invest in the yolk kits. Check jnztuning.com for the parts.

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Ok cool. I will check it out. Ive used jnz for all of my OEM stuff.