What have you done to your Tacoma today? 1st Gen Edition

You’re describing exactly what I’d recalled. For me it was after a cold start early in the morning and would go away before I got to the station where I fill up.

 

It's tight on the inner race, but loose in the bearing pocket.

 

Thanks! It's a work in progress...

 

Interesting. Yea it would go away after about 5 minutes of driving. Although it didn't happen on my drive home from work today.
It wasn't as cold as when I heard it this morning so maybe it'll turn up again tomorrow AM.
Do you have the 3rz motor?

I also just changed my oil and added a splash of ATF to my power steering reservoir so who knows if that'll play a role at all.

Also cleaned out my catch can and some milky goodness came out. The oil in the actual engine didn't look like this. Guessing this is just a mixture of captured moisture and oil.

Also sending a sample off to blackstone labs to get some insight into my engine health. Never done it before so curious to see the results.

 

Did some digging because this was bugging me. There are two different part numbers for the bearings, but they are dimensionally identical EXCEPT that the 01-04 version has a protruding lip on the inner race. It is quite likely that the early model bearing (no lip) would work fine on a later model housing, but not the other way around. The one I have in my spare kit has the lip, so would not work for @kuntry09 's truck. Good catch @Squeaky Penguin

'95 - '00: Toyota P/N

$80 90363-40020-77 Radial Ball Bearing

90363-40020-77, available commercially as Koyo 6308T
'01 - '04: Toyota P/N 90363-40068, available commercially as Nachi 40BCV09S1

 

See above quote from my build when I swapped to chromoly shafts that are the same as the earlier models.

 

Did you break an OEM axle shaft? haven't heard of many people doing so. Was that your reason for going chromoly?

 

I bent one.

 

So I wonder what the purpose of that lip is. Seems like everyone could use the early version Koyo bearing and be done with it.

 

Edit - nm thought we were talking CVs

 

Pssst. Rear axle. Everyone who wheels has blown up a CV. lol

 

I'm no engineer, but I was told it was to reduce a possible stress area.

You couldn't use the older bearing on the new shaft, they wouldn't seat right.

 

Haha woops, nevermind/disregard

 

The maximum stress area in a radial bearing is at the groove that the bearing balls ride in, I can't imagine a one-sided lip is going to offer any stress reduction to the inner race. If anything I would think it would be to maintain the correct offset for the outer race in the flange plate. Would be interesting to see the axle shafts side by side for comparison.

 

I meant to reduce a stress area in the shaft, not the bearing.

There are side by side pics in my quote above.

 

@Uphillshunter seeing your CV boots in that mud rescue a few weeks ago inspired me to order a set from Off Road Solutions. My driver side had ripped so I replaced them both. Little expensive, but hopefully I don’t have to worry about torn boots anymore:

 

Is your chromoly shaft the same as the '95-'00 OEM axle shafts? I guess that would make sense.

The shaft journal has a greater cross section than the majority of the axle, so it's not likely a critical stress point. I could see the larger inner race surface reducing the need for an interference fit, so not as much force would be needed to press the bearing on though. Or perhaps just reduces the likelihood of a spun bearing, what with all the horsepower these trucks are putting out. Lol.

 

Make sure the boot doesnt make contact with the coil on your kings throughout travel. Or you’re going to have a very bad/messy day. ask me how I know
I put and extra clamp in front of the boot to prevent it from sliding down the CV shaft.

 

Good to know, thanks!

 

Correct, that chromoly shaft is the same as the 95-00.

And again, not an engineer, so only guessing, but I think it is a critical stress point. Anything outside the bearing is unsupported and holding the weight of the truck, so you can't compare it to the rest of the axle that isn't supporting any weight.