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-   -   Which part is this - backdraft 3.5 (http://www.rcuniverse.com/forum/redcat-racing-support-427/11501561-part-backdraft-3-5-a.html)

rcenth 05-04-2013 10:39 AM

Which part is this - backdraft 3.5
I can't find the part # for this part in the schematic, here are pics:

(in the yellow the drive cup / axle looking part) - its the part that goes on the side of the differential, not the one for the front/rear.


This was the original part (broken):


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rcenth 05-04-2013 10:45 AM

RE: Which part is this - backdraft 3.5
Here's another pic, it's the part in yellow, pointing at it with blue arrow<div>

kelynsdad1023 05-04-2013 01:57 PM

RE: Which part is this - backdraft 3.5
you'll have to order the whole diff in order to get that part I'm almost sure . because I have the Earthquake 3.5 which has the same set up .

rcenth 05-04-2013 04:50 PM

RE: Which part is this - backdraft 3.5
actually it looks like I found it - bs903-110 for some reason it doesn't show the part # in the backdraft 3.5 schematic but, it does show it in the backdraft 8E schematic. We already tried bs903-109 and that was just barely too long. The bs903-110 we matched it with the broken piece and they are the exact same length so it has to be it. <div>

nitrosportsandrunner 05-04-2013 04:58 PM

RE: Which part is this - backdraft 3.5
get some O rings from a hardware store. for that part to break, the driveshafts have to much back/forth play which wore out the drive cup. an O ring or 2 will limit the play, reducing wear on both the drive cup and driveshaft.

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