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Old 08-11-2005, 02:32 PM   #2986
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Korey........ I think your order shipped yesterday.

BadBoyRC........ We have found around a 5.8 to 6.1 FDR is working out best depending on track size.
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Old 08-11-2005, 10:26 PM   #2987
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Dialed thanks man

-Korey
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Old 08-11-2005, 10:58 PM   #2988
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Quote:
Originally Posted by rayhuang
Thanks all. I think i build a good diff-but I hate building them. Mostly because I hate tearing a car apart to get the diffs out. I am looking for longevity!!!
It would be good if Corally comes out with a diff cover. It will definitely make them last longer.
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Last edited by danjoy25; 08-12-2005 at 12:01 AM.
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Old 08-11-2005, 11:24 PM   #2989
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I was suprised, I havent rebuilt my diff since....... march? This is on rubber tires mind you. It seems liek they last a long while. On foam I was cleaning/relubing every 3-4 runs.

-Korey
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Old 08-11-2005, 11:54 PM   #2990
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Quote:
Originally Posted by Sushi Boy
I was suprised, I havent rebuilt my diff since....... march? This is on rubber tires mind you. It seems liek they last a long while. On foam I was cleaning/relubing every 3-4 runs.

-Korey
your lucky...i'm on my fourth diff (rebuilt due to failures) since may. Me and diffs don't sem to get along very well with the RDX.
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Old 08-12-2005, 12:00 AM   #2991
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Pro 4: Your lucky, I've being rebuilding mine every week (20+). It actually takes me less than 10 minutes as I've mastered the art of taking the diffs of the cars. c u at the hill if your running
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Old 08-12-2005, 12:52 AM   #2992
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Just curious, what's wrong with the diffs? -JB
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Old 08-12-2005, 08:14 AM   #2993
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Quote:
Originally Posted by JayBee
Just curious, what's wrong with the diffs? -JB
I was askign the same question....I build mine and it is buttery smooth and doesn't seem to need a rebuild in the near future. The only reason I even did a rebuild is to put the ceramic thrust bearing in...other than that and the ceramic diff balls....the diff is untra long lasting...but hey this is for rubber tire racing...You foam guys are nuts...LOL.
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Old 08-12-2005, 08:20 AM   #2994
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Quote:
Originally Posted by JayBee
Just curious, what's wrong with the diffs? -JB

Well-heres my take on it. Outdrives appear perfectly machined, they use a killer thrust washer assy, nice thick diff rings is also a plus, the pulleys spin true.....Gotta be those diff balls!! Hence why I asked where do I get bulk carbide (or ceramic) diff balls. I think thats the weak link. But-thats cool. I dont need the kit to cost anymore because they added expensive diff balls.

Thats an option if you ask me.

Though I have to say the outdrives could stand to have a chamfer cut on the reliefs and slots. Does anyone else expect to pull back bloody finger tips when you build those things?
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Old 08-12-2005, 08:56 AM   #2995
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Quote:
Originally Posted by rayhuang
Though I have to say the outdrives could stand to have a chamfer cut on the reliefs and slots. Does anyone else expect to pull back bloody finger tips when you build those things?
I thought the same thing when I got mine awhile ago -JB
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Old 08-12-2005, 09:45 AM   #2996
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DIFF BUILDING TIPS

The Ceramic or Carbide Diff Balls would be near impossible to find in the US in bulk as they are 3.5mm size. We would recommend getting either of these as an upgrade. Like Ray mentioned though the cost factor to include them in a kit is tough. Also, you would not need these in bulk really as the Ceramic or Carbide balls will last months and months.

Out of the box we recommend pulling out the snap ring and packing the thrust with black grease. Then put it back together, make sure the ring is in the groove (Ray ).

Reassemble the diff and use 6 of the beveled washers on the screw. Snug it just enough so it doesn't fall apart. Put the bulkheads back on and assemble with tires. Adjust the diff with tires on and snug up little by little. DO NOT OVERTIGHTEN. Check the diff tension as usual, but do not use a Gorilla Grip and force it to slip. I repeat, DO NO OVERTIGHTEN.

Diff should be pretty much be locked and still feel smooth as butter.

Last edited by CorallyUSA; 08-12-2005 at 10:49 AM.
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Old 08-12-2005, 10:15 AM   #2997
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its all in the thrust, rebuild the thrust and the diff is butter....im still on my first set of ceramic diff balls...i got my car two or three months before the reedy race havent ever rebuilt my diff...rubber tires..bitter
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Old 08-12-2005, 10:56 AM   #2998
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Quote:
Originally Posted by CorallyUSA
[B]Then put it back together, make sure the ring is in the groove (Ray ).

EASY!!!!
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Old 08-12-2005, 01:04 PM   #2999
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What FDR range should i be looking at for a monster stock???????????
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Old 08-12-2005, 01:12 PM   #3000
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Quote:
Originally Posted by stegger
What FDR range should i be looking at for a monster stock???????????

how long is the striaght?....7.1 to 7.5 thats depends on how big your track is...bitter
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