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Old 06-24-2009, 08:43 PM   #16
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Quote:
Originally Posted by Lazer Guy View Post
The metal outdrives....All the cars,buggy's and trucks I've had use ball diff's. I don't know anything about gear diff's, never had one.
I mean the gear that gets screwed onto the outdrive.. Ive seen metal ones before.

Check this thread ive posted before.
http://www.rctech.net/forum/electric...nion-gear.html
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Old 06-25-2009, 08:15 AM   #17
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OK !!!!!! Your have troubles with the beveled ring and pinion

#1 You must shim the pinion into the case without the diff in, do this by adding one shim at a time until the pinion is free but has no slop (in/out).

#2 Take the pinion (still on the shaft) out and now put in and shim the diff so it has a very small amount of freedom (will say it took 5 shims)

#3 Put the pinion in and move the shims on the pinion shaft so the pinion has full contact with the ring gear (in/out) I do this with no shims on the diff so I can see and feel it.

#4 Put the shims back on the diff, If it took (say 5 shims) on the diff you'll have 3 on one side and 2 on the other.

#5 Now start moving one of the 5 diff shims on the diff from side to side (say 4&1 or 3&2) until there is a very small amount of freedom between the two gears.

#6 If the gears are to tight you will feel the gears when you turn the diff in your hand, move the diff shims until it's free but has very little slop.


Man that was long....I hope you understand and this helps.
I see you have been having this problem for some time now.
I had to do this on my mod HPI pro4, also shaft drive.

Last edited by Lazer Guy; 06-25-2009 at 09:05 AM.
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Old 06-25-2009, 08:33 AM   #18
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+1

Shimming a shaft driven drivetrain is a crucial step in getting optimum preformance. I had to do the same thing for my Pro 4 when I first bought it used. Well worth the effort.
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Old 06-25-2009, 09:30 AM   #19
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Quote:
Originally Posted by Lazer Guy View Post
OK !!!!!! Your have troubles with the beveled ring and pinion

#1 You must shim the pinion into the case without the diff in, do this by adding one shim at a time until the pinion is free but has no slop (in/out).

#2 Take the pinion (still on the shaft) out and now put in and shim the diff so it has a very small amount of freedom (will say it took 5 shims)

#3 Put the pinion in and move the shims on the pinion shaft so the pinion has full contact with the ring gear (in/out) I do this with no shims on the diff so I can see and feel it.

#4 Put the shims back on the diff, If it took (say 5 shims) on the diff you'll have 3 on one side and 2 on the other.

#5 Now start moving one of the 5 diff shims on the diff from side to side (say 4&1 or 3&2) until there is a very small amount of freedom between the two gears.

#6 If the gears are to tight you will feel the gears when you turn the diff in your hand, move the diff shims until it's free but has very little slop.


Man that was long....I hope you understand and this helps.
I see you have been having this problem for some time now.
I had to do this on my mod HPI pro4, also shaft drive.
Awesome! Thank you so much, i'm pretty sure i understood it all. haha
I will be giving this a try later today.

Thanks again!
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