Eaton Truetrac into 489 Case

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IRISH RT

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Got my Eaton Truetrac centre Delivered this morning , Have Not Ordered any Gears Yet as Im not 100% sure what Brand will bolt up with no clearance issues, Putting 3.9 on it , Any Help Appreciated
 
IRISH RT said:
Got my Eaton Truetrac centre Delivered this morning , Have Not Ordered any Gears Yet as Im not 100% sure what Brand will bolt up with no clearance issues, Putting 3.9 on it , Any Help Appreciated
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I just installed a set of 4:30 from Richmond. You will need to order special bearings from summit RAT-9004. I ordered the RMG-6900601 & RMG-8310311 from summit as well. I also installed the spacer that came in the truetrac kit and set the preload to .010" on the passenger side (I do not have green bearings). I called Eaton and they told me to only use shell spiral or Lucas oil 80/90W and no additives. Sucks because I had just dumped in 4 quarts of valvoline and he told me to drain it out. Truetrac also has a $50 mail in rebate right now. Hope this helps! Andrew
 
Mrpatel said:
I just installed a set of 4:30 from Richmond. You will need to order special bearings from summit RAT-9004. I ordered the RMG-6900601 & RMG-8310311 from summit as well. I also installed the spacer that came in the truetrac kit and set the preload to .010" on the passenger side (I do not have green bearings). I called Eaton and they told me to only use shell spiral or Lucas oil 80/90W and no additives. Sucks because I had just dumped in 4 quarts of valvoline and he told me to drain it out. Truetrac also has a $50 mail in rebate right now. Hope this helps! Andrew
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Just took mine out off the box no Spacer and Then I seen Made in Taiwan , Is youra a Mopar Rear??????
 
The spacer is around 1" or so and is the diameter of the axle. Search truetrac on this sight. You will find similar replys. If you have green bearings that are adjustable, I do not think you need the spacer.
 
Mrpatel said:
The spacer is around 1" or so and is the diameter of the axle. Search truetrac on this sight. You will find similar replys. If you have green bearings that are adjustable, I do not think you need the spacer.
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yep got green bearings
 
yep found centre spacer , yep i had a clutch type previous with green bearings and removed spacer
 
Cool, I ended up calling eaton as I installed mine last weekend and wanted to reassure what I had done. I went from a 3:55 to a 4:30 so I would see a noticeable difference for running around town. I still have my other chunk intact to swap out for longer trips if needed. Can't wait to try it out after the roads clean up. I also upgraded the yoke to a "u" bolt style from Mancini. Good luck! Andrew
 
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