Wildcat2514_ Posted September 24, 2022 Share Posted September 24, 2022 Hi all Hope this is posting in the correct section.. Pretty New to this hobbyI've got a hpi trophy flux should I presume its a 4 wheel drive.It appears there's a problem somewhere as when going forward only the front wheels are driving and not the rears,but when in reverse all 4 wheels drive.would this mean 1 of the diffs are gone ? Quote Link to comment Share on other sites More sharing options...
Steve-O2021 Posted September 25, 2022 Share Posted September 25, 2022 Yes they are 4 wheel drive with 3 diffs. Sounds like somethings wrong with the centre or rear diff Personally I would strip all 3 diffs and replace with hardened gears and fill the diffs with oil instead of the stock grease Check this thread for oil recommendations Quote Link to comment Share on other sites More sharing options...
Steve-O2021 Posted September 25, 2022 Share Posted September 25, 2022 It's a very durable RC I find, nothing has broke yet on mine well actually just a plastic rear suspension pin holder VID-20220829-WA0006.mp4 1 Quote Link to comment Share on other sites More sharing options...
Mike_J_Smith Posted September 26, 2022 Share Posted September 26, 2022 I had this on one of my cars and it was just a grub screw had come loose on the rear driveshaft, so a simple fix. Quote Link to comment Share on other sites More sharing options...
Steve-O2021 Posted September 26, 2022 Share Posted September 26, 2022 33 minutes ago, Mike_J_Smith said: I had this on one of my cars and it was just a grub screw had come loose on the rear driveshaft, so a simple fix. I was thinking that as well but he said when in reverse all 4 wheels drive the car Quote Link to comment Share on other sites More sharing options...
Mike_J_Smith Posted September 26, 2022 Share Posted September 26, 2022 17 minutes ago, Steve-O2021 said: I was thinking that as well but he said when in reverse all 4 wheels drive the car Ah, didn’t read the post properly 😂 Quote Link to comment Share on other sites More sharing options...
Steve-O2021 Posted September 28, 2022 Share Posted September 28, 2022 Any updates? Quote Link to comment Share on other sites More sharing options...
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