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Old 10-02-2010, 11:20 PM   #5836
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Be prepared to change the fluid frequently.
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Old 10-03-2010, 01:28 AM   #5837
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I think just about all the gear diffs were designed for stock classes (mainly 17.5), but it's not stopped anyone from using them in mod, wear being the main issue, with them maybe needing to be rebuilt more often, depending on how light the oil and how much power you put through them.

Not so keen on ball diffs myself so I'm going to put the Top diff you linked in my 10.5 SS and see how it goes, considering even if it wears faster I think the rebuild kit is like $8, so I figure if it gets maybe 6 meets between rebuilds or something like that I'm good with it.
good luck with 6 meets with no rebuild. I have gone through 3 diffs in as many races. I am personally not happy with the upro diffs right now. And I run 17.5 only.
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Old 10-03-2010, 02:13 AM   #5838
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I have not had any problem with the upro items in open 17.5
Have done at least 5 meetings with front and rear gear diffs. The tracks have been kind though, no big hits etc...

Running 100k in the front, standard in the rear.
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Old 10-03-2010, 01:13 PM   #5839
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what length r u lot building ur shocks from top to botton?

thanks
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Old 10-03-2010, 03:08 PM   #5840
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what length r u lot building ur shocks from top to botton?

thanks
Mine are 59mm over all length. Didn't want to screw the rod ends on the shafts too far and bugger em' up.
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Old 10-03-2010, 03:21 PM   #5841
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Mine are 59mm over all length. Didn't want to screw the rod ends on the shafts too far and bugger em' up.
mine are 62mm is it the shorter the more ride height u get?
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Old 10-03-2010, 10:56 PM   #5842
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mine are 62mm is it the shorter the more ride height u get?
Shorter shocks would give you less available ride height.
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Old 10-04-2010, 02:19 AM   #5843
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Unless you are trying to get rally car levels of ride height (and why would you?) the shock length makes little difference. As long as you can get all the droop you need, without the piston colliding with the top of the shock, or the threads ripping the seals, then the shock length is fine.
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Old 10-04-2010, 03:33 AM   #5844
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is anybody having or had any issues with loosing c clips from the rear drive shaft after only one 5min race ????? its only on one side l/h rear
this happend 3 times out of 7 x 5 min races over the w/end,this was the cars 1st run after being built, also same happened to a mates new car as well
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Old 10-04-2010, 03:54 AM   #5845
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is anybody having or had any issues with loosing c clips from the rear drive shaft after only one 5min race ????? its only on one side l/h rear
this happend 3 times out of 7 x 5 min races over the w/end,this was the cars 1st run after being built, also same happened to a mates new car as well
Do you mean the driveshaft blade ? If so, check it's not hitting the diff screw/nut, some people had this issue with 46mm driveshafts in the rear.
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Old 10-04-2010, 04:15 AM   #5846
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Can you buy this car in the US?
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Old 10-04-2010, 05:21 AM   #5847
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Can you buy this car in the US?
Yes, I believe you can order directly from TOP by emailing or calling topracingusa. Amainhobbies also has it in stock.
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Old 10-04-2010, 08:49 AM   #5848
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TOP NEW LW CF Suspension Arm Released !
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Old 10-05-2010, 12:00 AM   #5849
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Do you mean the driveshaft blade ? If so, check it's not hitting the diff screw/nut, some people had this issue with 46mm driveshafts in the rear.
Had this same problem earlier. The blades are hitting the ball diff screw that is about 1.5 - 2mm extra sticking out of the nut. I just dremel 1mm off the screw. Problem went away.

Usually after fitting in new blades on the swing shaft, you will notice that the blade is a little loose after the stretching over the 2mm pins. Hold both sides of the blade together with a long nose plier and apply some heat on the blade bridge. Allow it to cool and you will have a tight fitting blade on the diff slot.
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Old 10-05-2010, 12:29 AM   #5850
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Originally Posted by chris_dono View Post
Do you mean the driveshaft blade ? If so, check it's not hitting the diff screw/nut, some people had this issue with 46mm driveshafts in the rear.
initially had 46mm shafts in & yes the blade was sitting on the screw/nut but then changed to 44.5 mm & problem still ocured,will try the heating & cooling method & see if that fixes the issue
thanks for the help
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