|Ivan's 2000 Tundra rear 8.4" rebuild (from the Island of Curacao)|
|(42 BIG pics loading)|
|JUNE 28 2018|
| Ivan's 2000 Tundra had a rear 8.4" that needed rebuilding. Rebuild shops are tough to find on this Island... so he made a box from wood |
and Bon Trade forwarded it to me in Arizona.
|As received. It made the trip with no loss of wood panels. :)|
| A little bit of surface rust I suspect from the salt in the air on the trip over. Easy enough to clean up though. |
Apparently the ring and pinion were also destroyed.
|I'm supplying the 3.91 (43/11) take-offs and new bearings and center carrier assembly.|
|92 ft/lb and red high strength threadlocker on the 12 bolts per fsm.|
|New Koyo carrier bearings are tapped on.|
|Ring and 2 bearings are on....this end is complete.|
|New outer race..............|
|.....is tapped in.|
|Fully seated....nice tight fit also.|
|Same with the larger inner race. No washer plate under this race. It will be re-located to the pinion head.....like most other traditional Toyota 3rds.|
|Let's try .080" shim first and see what it paints like.|
|The Harbor Freight 12 ton easily presses on the bearing and shim.|
| Put the main body of the 3rd over the pinion, tap the pinion flange on, tighten nut to give about 10 inch/pounds of pinion preload, |
bolt the ring gear assembly down and set some preload and backlash.
|Drive pattern says way too shallow....needs a thicker pinion shim.|
|Coast side agrees.|
|Comet tail on the drive side pinion tooth is tucked in too hard....which means that the ring gear is shallow.|
| Teardown and reshimmed for 6 thou more for a total of .086"|
Driveside looks slightly shallow.
|Coast looks nice.|
| But the comet tail says it all.....says to go deeper with a little more shim.|
(Comet tail is severely tucked into the root.)
|So we take it apart once more and slap another .003" on the pinion head for a total of .089"|
|press press press|
|This time I feel so good about this 089" shim that I will put the new crush sleeve in now.|
| Tightened up just enough to get an accurate paint test.|
Driveside looks beautiful. Even favors the toe a little.
|Coast looks very nice and is centered.|
|The comet tail tells the story....comet tail feathering to the center. Perfect.|
|In the case of the 8.4", the best seal is the OEM factory seal. 90311-44007|
| Last chance to oil up the outer pinion bearing....and apply some thick grease to the inards of the seal to prevent the garter spring|
from accidentally popping off.
|This original flange looked kind of "ratty" on the seal surface even after #1500 wet/dry passovers.|
|A shiny, new flange is the best guarantee against a drip.|
|Aluminum based anti-seize was applied to the pinion threads.|
|The pinion nut was tightened until a smooth 10 inch/pounds of pinion start torque was measured.|
|DING! and this end is done.|
| Last chance to tweak the bearing preload and the backlash value....add less than .001" to this side....and also add .002" to the other side.|
That has the affect of tightening the bearing preload and closing up the backlash a small amount.
|The 4 bearing cap bolts are torqued to 83 ft/lb per the FSM.|
|Total combined preload is measuring about 17 inch/pounds|
|Backlash is recorded on every other tooth.|
|The ring is inscribed with the basics.|
|A shot of the notes for Ivan's rebuild.|
| This is how Ivan did it.....created an account here. Bon Trade ships it to their Florida USA port and then it's forwarded to me.|
Then the rebuilt 3rd I ship it back to the Florida address.