Ford 9" Mini-Spool install!!!!

[tailgunner]

Putting my gears back together after a snapped axle change and figured might as well do a write-up!!!! Axle is a Big bearing unit pulled from a '79 Ford F100.

Third member was setup pretty good already, has to remove the mini-spool to get axle chunks out. so the adjusters on the carrier bearings were indexed with a sharpy to get me in the ballpark for the backlash adjustment as that is all that is affected when pulling the carrier.


here is all the parts. got them all cleaned up. using a folding ladder/scaffold i got for christmas for the table. added benefit of having the third member fitting between the rungs nicely!!



Here is the mini-spool next to the ring gear. basically it replaces the planetary gears in an open differential. not the best for the street cuz the two axles are now locked together and tires wear out fast and it chirps around the corners. but it drifts really well in the rain on the street and does great off road!!!!!



Here is the third member housing in the ladder contraption



first comes these shims, put one in one side of the carrier housing.



Then comes the mini-spool

[tailgunner]

then the center pin goes thru the carrier and the mini-spool



then comes the roll pin



then the other shim



then the other half of the carrier



then the ring gear tapped halfway into place (leave a gap so you can allign the holes and put in the ring bolts

[tailgunner]

now remember that the locktight sets in under 20 minuites so in order to torque the i rigged up a c-clamp and rake handle deallio to keep the pinion from turning while applying correct torque. Ghetto but it worked





locktight all the ring bolts and thread them, use a ratchet to tighten them in a star pattern so the ring gear seats and no threads are damaged. then set the carrier into the third housing with the outer bearing caps

[tailgunner]

align the adjusters with your index marks





put on the bearing caps and torque the ring bolts to 70 ft-lbs and the bearing caps to 60 ft-lbs (bearing caps get locktight as well)



Correct me if i am wrong, but the Ford 9" has no carrier bearing preload so the carrier bearing adjusters are tightened just past hand-tight, adjust the carrier left or right to correct backlash. backlash is the measurement of ring gear play (rotational) while holding the pinion yoke.  backlash should be about .010". i used a peice of .010" plastic shim i use on my helo's held in place and touching the outer edge of the ring tooth. basically it should "clunk" back and forth a cunthair when rotating, but have zero left to right play. once set the adjuster ring holder dealio's go into place with locktight, couldn't find a torque on them so i did it marine helo mech style and used the German torque of "Guten-tight". basically get it tight and then past till you feel a rise in torque.





DONE!!!!!

take it for a spin to listen for whines and let it have an easy break in period for 20-30 miles to ensure nothing will explode. if it whines or grinds or somthing take it apart and get better advice then mine LOL!!!!

[metul munky]

you want some of what i was dealing on saturday dont you....

new signature coming

[tailgunner]

Dude, that ride was Epic!!!! was the fastest i have ever been out in the dezert. Tried to act cool but in my mind i was like OOOOOOHHHHHH FFFUUUUUCCCCCKKKK!!!!!!!!!

I'm coming for ya one day!!!!

[metul munky]

right on, i hope you come get some, cuz when your at the wheel........... it only gets better.. stock gearing, stock motor, 33s... passing rangers, had dudes on the side of the track jumping up and down screaming whoop whoop

[tailgunner]

yeah, seemed like evertime we went by someone they sat up,looked at the truck, and was like "holy shit, a built S10 hualing ass??!!??!!"

[metul munky]

yeah brutha, it just felt really good to rrrreeeeepresent..........

[Jeffs91S10]

Good job TG, well written brutha!

[boxcarracer963]

I can only imagine what its like in the daytime but goin like 60 in the dark with jeffs weak headlights was pretty awesome.