8" E-locker from 2005 Tacoma Chunked the Ring Gear. |
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(44 BIG pics loading) |
MAY 31 2016 |
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Aaron has a 2005 Tacoma with rear 8" e-locker and enjoys the hot Arizona "trails"...... |
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....and doesn't mind a little cold mud during the winter. |
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This is what he did recently.....this one gets the "most damaged ring-gear" award. |
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He was out wheelin' at Butcher Jones near the Sahuaro Lake East of Phoenix. |
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Locker case half is trashed. |
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Aaron also brought over a donor e-locker to use. |
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The plan is to use a known good used set of 3.73 gears(shown in the background) and examine the bearings to see if they are re-usable. |
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Diff teardown has begun. Pressing the pinion out. |
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The outer pinion bearing and race are pitted. A new one will replace it. |
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Easy way to get the race out without even a scratch in the oil retainer is to use a washer cut in half and a plastic cap. |
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Press it out.... |
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This time the oil seal fell out with the race. |
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A new KOYO oem bearing will be used. Oil retainer shown in the background. |
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Close up of the outer pinion race.....mucho pitting. |
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Old race on left and new on right. |
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Run-out was checked with a dial indicator and was ok at .003". This is something that should always be done when broken teeth were involved beforehand. |
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A good, snug fit but the plasic hammer made it all happen. Boiling water not needed. |
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Red loctite and 70 ft/lbs. |
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The oem .079" shim is re-used along with the used bearing. |
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Pattern check so the new crush sleeve is left out for now. |
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Caps are then bolted down....backlash set....bearing preload somewhat.... |
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Driveside. |
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Coast. Favors toe end. |
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Driveside on the reverse painted teeth. Looks better. |
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Coast on the reverse painted teeth. |
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Driveside on the pinion teeth. |
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With the pinion depth now verified, The new crush sleeve can now be installed. This is a trick I learned from JT's.... Some aftermarket crush sleeves take a tremendous amount of torque even with aluminum anti-seize. Even a new nut can receive alot of thread damage. The trick is to use the 12 or 20 ton press to crush until 95% of the slop disappears. Then remove it from the press and tighten the nut the last 1/4~1/2 turn until the target preload is reached. Much less damage to the threads this way. |
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The crush sleeve has just been crushed 98% of the way and now is the last chance to add some gear oil to both pinion bearings. |
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Oil sling and new rubberized 29 spline seal are in place. Anti-seize shown on the threads. |
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10 inch/pounds noted with the large used inner bearing and small new outer bearing. DING! the pinion nut and done with this side. |
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The 4 bearing cap bolts are now final tightened to 70 ft/lb. |
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Backlash is dialed in as well as the carrier bearing pre-load. |
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Satisfied with the readings now the lock-tabs go in....10 ft/lb. |
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Total pre-load is 17....pinion preload is 10 so that means the Carrier Bearing Pre-Load is 7 in/lb. |
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Drive side. |
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Coast side. |
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Notes taken. |
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Ring gear data. |