Jorge's 1997 Landcruiser rear 9.5" gets an Aussie locker and Nitro 488 Gears |
---|
(91 BIG pics loading) |
MAY 23 2017 |
Jorge found a good deal on a used 9.5" 3rd and had it sent to me in a 5 gallon bucket. |
---|
If the bucket was a 6 gallon one then it would actually fit like it's supposed to. |
Everything needed to do this build....master kit/solid collar/488 Nitro gear/Aussie locker |
Even though the master kit comes with a pinion seal, a Marlin eco seal will be used. |
Dis-assembly begins. |
Bearing caps are removed. |
,,,,,,,,,,,,,,,,,,, |
Now is a good time to install the Aussie. |
The carrier bearings are pulled off. So easy with the right puller. |
That cross-pin sticks out just far enough to prevent the old ring gear from slipping past it. |
Close up. |
How a flapper wheel can fix that situation fast. |
Remove the 12 ring gear bolts/nuts. |
........................... |
Tap off the old ring gear. It's a tight fit here. |
Slipped right past the cross-pin. |
The Aussie will now be installed. Cross-pin comes out. |
Minimal wear was noted. All is good. |
Spiders and sidegears come out. |
The side gear thrust washers(.0748" thick each) will be re-used. |
First, a clearance check will be done. |
Aussie Locker.....Made in USA. Rochester, NY. Thank you Cora for keeping the Aussie alive and well. A solid product proven strong. |
Leaving out the drive cam gears will allow us to measure the tolerances. |
........................... |
.003~.004" was measured in all 4 locations. |
Now the Aussie can be fully assembled. In years past, the 4 springs used to be a real tight fit to get into the slot but now they slip in like butter. |
Thank you Aussie machine shop for opening them up a few thou :) |
The gap was measured at .162" |
----------------------- |
Nitro 488 ring is tapped in place. |
Only need 4 bolts tightened to secure it for now. |
The pin will hit the tooth if it ever needs to be removed. If this 3rd were transferred to a semi-floater then this would be a problem. |
A 1/4" die grinder could be used.... |
--------------------- |
In small increments, remove a little more material each time. |
The key is to remove the absolute minimum to clear the cross-pin. |
............................... |
Just a little at a time..... |
The absolute best at precision removal is the dremel tool FYI. |
Success. |
Minimal loss of tooth. This is the procedure recommended by Aussie. |
The removed material is on the toe end.....almost no contact from the pinion tooth in actual use. |
The crosspin bolt has blue loctite and 20 ft/lb. |
81 ft/lb and blue loctite on all 12 bolts. |
Both carrier bearings are tapped in place. |
The center carrier is now complete. |
Working now on the pinion end....let's try .056" based on past results. |
Using the press and and my favorite widget to press the pinion bearing on. |
The old pinion is removed. Kind of filthy so the outside of the 3rd will be high speed wire wheel. |
New races are tapped in. |
The high speed wire wheel really did help clean up the outside. Pinion is installed at this point. |
Now the differential carrier can be installed. Bearing caps are put in place. |
Wheel adjusters are tightened up and backlash is put in spec. |
Drive side....not bad but is a touch shallow here. |
Coast....agrees that it is indeed shallow. |
Drive side..... reverse painted. |
Coast.....reverse painted. |
drive on pinion tooth...comet tail is tucked in to the root. |
same on this tooth. |
Comet tail is easily seen tucked in. |
This is an easy tweak....just add .004" to the depth. Pinion is pressed out here. |
Pressing the bearing off. |
Change the pinion shim to .060" and finish that coffee. |
A lot of monotonous operations but somebody has to do it....press the pinion bearing back on. |
What I see when I don't finish my coffee. Drive side. Looks excellent. |
Coast looks nice. |
Drive...reverse painted. |
Coast....reverse painted. |
With depth now established, now the solid collar can be situated. It took only 3 tries to find that perfect shim thickness. |
Marlin collar is now parked in place. |
tap tap!! |
All of my installs see 1500 grit wet/dry sandpaper....just in case. |
Most of my installs will see a generous amount of aluminum based anti-seize on the threads...and the contact bottom of the pinion nut. |
Makes it easier to get that pinion nut tight with less lost torque due to friction/resistance. I have 12 in/lb of pinion preload. |
DING. This end is complete. |
Guts are put in place and bearing caps seated properly. |
70 ft/lb on all 4 bolts. |
Measuring the Total Preload on my back.....19 in/lb start torque. |
Backlash is checked and logged in 20 places. Minimum backlash was found to be .0065"....just perfect. |
Last thing to do....lock tabs with blue loctite and 10 ft/lb. |
Basic data is etched on the ring gear. |
A snapshot of the install notes. |
The black G2 box is stuffed with packing paper in just the right places and acts as a very effective shield for the bottom of the double box. |
Ready to go to the Czech Republic. :) |