Chris's FRONT 529 US GEAR
(24 low res pics loading)
May 30 2004


This is Chris's 8" front 3rd.....new US GEAR 529's and also installing this donated Lockrite.


I have new bearings going in also....so off with the old ones using this little adapter I had made at a machine shop.


By having the center "point" at a location lower than the grip jaws allows the puller to not want to bend and fall over.....the pull keeps the puller straight up. The jaw fingers have been ground on some to grip the bearing lip better.

With the carrier bearings off, now it's time to remove the ring gear.....and throw away these locking clips. I will use loctite instead.


punch the dowel out and remove the drive pin and spider/side gears.


I partially assembled it and checked for less than .015" clearance.


With the locker in, it's time to file any irregularities off the ring gear mounting surface.


New ring on....loctited and torqued to 70 ft/lb and the new carrier bearings installed.


Just simply the best of the best.....US GEAR.


Gone as far as I can go with the case.....time to work on the main chunk....even with the pinion nut staked, the ole electric impact with a 30mm impact socket easily removed this.....in about 2 seconds. Pink is the code for 4.10 gears?....any "hidden meaning" there?


My seal remover....big chisel and some side taps from the hammer....


part number for the pre-86 main rear pinion bearing......32307JN by Nachi


small front pinion bearing number 30306Ja by KOYO


carrier bearing race 17831 roller 17887 by NSK


I chose a .099" pinion shim and pressed on the new bearing....that's the Toyota factory solid collar and I chose .052" worth of shims for a first try....


With just the pinion installed and carefully ramming the yoke down.....I found a nice 10 in/lb of pinion pre-load. So that means no repetitive dis-assembly needed to get the pre-load right on. Now I can place the carrier in and finally get it ready for the 1st painted pattern check.


I set the backlash in the ballpark but made sure I had a ton of carrier bearing pre-load.....roughly about 40 ft/lb on the bearing adjusters. That way, when I wedge a crowbar between the ring and carrier, I don/won't get any ring gear deflection to screw up the painted pattern.


A very nice pattern on the drive side.....


coast side mimics the same. At this point, I tweaked the BL in at .007" and used some arm to get good carrier bearing pre-load.


Just for the fun of it, I checked the pinion pre-load with the added resistance of the tightened up carrier in place.....adds about 10 more inch/pounds to it.


Then I pounded the new seal in.....I used an old race that fit over the top nicely here.


plenty of grease on the rubber seal and blue loctite on the threads......then placed the yoke,washer and new nut on.....held the gun on it for about 10 seconds(200 ft/lbs)....


Just for the fun again, I checked the torqued required to turn the pinion with everything in place......even with the grease on the seal another 10 in/lb was felt due to "seal" resistance for a total of 30 in/lb accumulative.


swish swish SWISH!

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