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Old 07-05-2010, 08:37 PM   #1
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Default RC8T Champ Ed. Driveshafts...?

My new RC8TCE is bending front driveshafts left and right. Very annoying! So I have two questions before I buy new ones...
1. Are there any other brands of CVD's that will fit the front of my RC8TCE?
2. Are the front and rear driveshafts identical on the RC8TCE?
thx
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Old 07-05-2010, 11:13 PM   #2
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1. not that I know of. Many are looking for the same thing

2. Dog bones are the same, if not very close. Axle stubbs are different.
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Old 07-06-2010, 12:00 AM   #3
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Default Just a thought...

Quote:
Originally Posted by mattyb13 View Post
My new RC8TCE is bending front driveshafts left and right. Very annoying! So I have two questions before I buy new ones...
1. Are there any other brands of CVD's that will fit the front of my RC8TCE?
2. Are the front and rear driveshafts identical on the RC8TCE?
thx
I honestly don't know much about that truggy, but I did work on an rc8 once for a friend.

I would limit the front travel of the shocks internally. That car, and probably the truggy, has a lot of travel and just may be the cause of the problem. Outdrives catching the axels at weird angles and so on. Or it could be uptravel too. A couple o rings or spacers on the shock shafts, inside and out may help. Do a little experimenting, that's how you learn....

Just my 2 cents.....
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Old 07-06-2010, 09:26 AM   #4
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Its the lack of clearance behind the Caster Block that bends em.

Funny the old RC8s never had this problem it seemed to surface
when they reinforced the upper A arms.

There not that hard to straighten with a couple of pairs of pliers.

After that I would open up the back of the Caster Block slightly
with a dremel. Maybe give it a MM or 2 more clearence then break
the sharp edge at the shoulder.
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Old 07-06-2010, 01:40 PM   #5
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What I have seen is that the problem lies in two areas. The bones are almost bottomed out in the outdrive from the diff, and the arms have way too much flex. I'm goin to try a set of MBX6T bones to see if I can get some more clearance in the outdrive cup. Just my .02.
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Old 08-27-2011, 09:48 PM   #6
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Default rc8t bent cvd's

Im having this same problem!
how many mm's to limit in front shocks?
anybody try this yet?
also, i didnt understand the castor block mod
any pics?
thanks
my durango's have a beefier center section! I guess keeps them from bending!?
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Old 08-28-2011, 01:15 AM   #7
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Default

Quote:
Originally Posted by mattyb13 View Post
My new RC8TCE is bending front driveshafts left and right. Very annoying! So I have two questions before I buy new ones...
1. Are there any other brands of CVD's that will fit the front of my RC8TCE?
2. Are the front and rear driveshafts identical on the RC8TCE?
thx
The reason this happens is because when you land off, and or almost flip the truck over you go on power to save it. Or to try to save it. Basically if you are going to crash and you come off power you should almost never bend them. I stopped going crazy on power when I was about to crash and haven't bent one since.
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Old 08-28-2011, 05:08 PM   #8
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How much limiting you have in the shocks has nothing to do with it. Limit your steering throw to where the shoulder on your steering knuckle just touches castor block. If you run more EPA than what achieves this, it will bend them when the suspension flexes.

Like mentioned above also, when you are in the gas on a landing with the wheels turned hard, they can bend. As for fronts and rears, they are the same, and the center rear is the same also, so 5 dogbones on the truck are identical.
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