Toyo_Master

I'm putting a one piece driveshaft (with a slip) on my 94 SR5 Extended Cap 3.0 5sp Yota to replace the troublesome 2 piece with the Center support bearing. South Bay Driveshafts is making up the shaft for me and they are recommending that I change out the rear output bearing on my transfer case before I install the shaft.

Can this be done without pulling the case and splitting it? I looked in an 88 Repair Manual and it seems to indicate that the bearing must be pressed off and on the output shaft after removing the output shaft from the case (which means splitting the case and all those things that that involves).

Has anyone actually done this? Someone on another forum said to just remove the rear output flange, remove the rear bearing retainer (rear extension housing) and the bearing can be simply changed. After reading the 88 Manual I'm having my doubts about whether it's that simple.

Anyone out there know for sure?

Thanks,

Toyo Master

Toyo_Master

No one can give me any info?? I'm about to tear into this thing and need some help.

Thanks,

Toyo Master

amusement

The VF1A transfer case used on 1994 V6 5 speed has an external house that could be taken off without having to drop the transfer case.

If you haven't done it I would recommend having a pro do it and watch. But, that's my thinking and so far I haven't been stranded yet. Have you?

toy283

I would imagine it would be possible. Never messed with a chain-drive (VF1A) case though. On the gear-drive cases (RF1A), a bearing change is about a 1-3 hour job depending on abilities, etc.

edit- I did a little research in my EPC. It "looks" to me like the bearing is going to be a press-fit on the output shaft. This is not how it is on the RF1A cases, it slips on those. Can't be certain of this just by looking at an exploded diagram but there are certain tell-tales that lead me to believe this. For one, the existance of a snapring around the circumference of the bearing. The slip-fit bearing don;t have one but every bearing that does it a press-fit. Two. The lack of any sort of bearing retainer in the extension housing. The bearing fits into the extension housing on the RF1A's. It doesn't appear to do so on a VF1A. Once again, this is all just an educated guess based on a diagram and past experience with a different transfer case.

edit #2- Upon further review, it is the opinion of this mechanic that that bearing must be a press-fit. There is nothing else to locate the output shaft (ie, keep it from moving axially). If the bearing were a slip fit type, the shaft would have too much axial movement. On the RF1A cases, there is a bearing further in that does this.

On a side note, does anyone with a 3.0 V6 truck or 4Runner want to donate a VIN to my database? It took me quite a while to find this info without one. I used to have a viable one but it seems to be gone now. For that matter, I could also use a '84-'88 standard cab 4WD pickup as well. All I seem to have are Xcabs.

amusement

I went to Ebay and found a VIN for you:

1993 4runner 3.0 + manual

JT3VN39WXR0159206

http://cgi.ebay.com/ebaymotors/ws/eB...&category=6442

1994 Pickup 4x4 3.0 + manual

JT4VN01D7R2014620

http://cgi.ebay.com/ebaymotors/ws/eB...&category=6439

toy283

Danke. For some reason, I totally forgot about looking on eBay. oops.

amusement

That's ok no one person can know everything. If they did, what would be the point.

"The more I know, the less i know" Anonymous.

Toyo_Master

Thanks, that's what it looked like to me when I looked at the earlier model 5sp 3.0 repair manual. Well, it looks like I'll just go with the old bearing. Heck it has no play, seal leaks or any indication of problems, nor does my pinion bearing. My vibration and noise is probably coming from my multi piece driveshaft like most everyone has told me. Either 1 or 2 bad u joints or the carrier bearing. When I got the truck everything under there looked pretty dry. I haven't driven the truck since hearing the noises and haven't had a chance to lube everything up and drive it to see if that may be the cause. I know that when I got it home after buying it I found one of the reataining bolts on the rear driveshaft-differential flange very very loose so, maybe that u joint got wasted because of the vibration that had to have caused.

Tuesday, Wednesday, Thursday is truck maintenance week. Changing out all the fluids to synthetic, lubing up the suspension and driveline, changing front rotors, servicing the front bearings and hubs and changing oil. I think I might try and find the time to also remove the 3" body lift. It's kind of a waste along with the 4" lift with stock 10.50 15's. I'm too old to climb that far up to get in anyway. :cry:

Toyo Master