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Thread: Diff grease?

  1. #1
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    Diff grease?

    Hello, Iím going to get an Xmaxx for Christmas and I have been watching a ton of maintenance videos, I found everything I need to use when I rebuild it and clean it out except for one thing. The diff grease, I canít find any anywhere that sounds like it could be used in rc cars. So if anyone out there has any links to some diff grease that would be very helpful!

    Thanks, D3x

  2. #2
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    Quote Originally Posted by D3x View Post
    Hello, Iím going to get an Xmaxx for Christmas and I have been watching a ton of maintenance videos, I found everything I need to use when I rebuild it and clean it out except for one thing. The diff grease, I canít find any anywhere that sounds like it could be used in rc cars. So if anyone out there has any links to some diff grease that would be very helpful!

    Thanks, D3x
    ŅDo you mean the inner grease in gears or the outer grease in the diff housing?, for the outer I use molybdenum grease from VALVOLINE, in the inner, I use the stock silicone oil.

  3. #3
    Marshal Double G's Avatar
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    I assume you are talking about the ring and pinion. If so I use automotive high-temp bearing grease.
    The Super Derecho

  4. #4
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    I meant the outer diff grease. But both are helpful! One question though around how often should I clean out the inside of the diff and put grease back into it. Like whenever I clean the outside of the diff (Once a month) or is it ok to do it less often. Also is this the outer grease you use? https://www.amazon.com/Valvoline-Mol.../dp/B000GAD07O
    (This was a reply to Juan machine and double g I have no clue what those are!)
    Last edited by D3x; 10-26-2020 at 08:17 AM.

  5. #5
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    Can i see that list of items you have collected for future service/maintenance?

  6. #6
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    Quote Originally Posted by D3x View Post
    I meant the outer diff grease. But both are helpful! One question though around how often should I clean out the inside of the diff and put grease back into it. Like whenever I clean the outside of the diff (Once a month) or is it ok to do it less often. Also is this the outer grease you use? https://www.amazon.com/Valvoline-Mol.../dp/B000GAD07O
    (This was a reply to Juan machine and double g I have no clue what those are!)
    The grease I use is the same you put in the link. I clean the diffs each two months or similar, depends on the use.

  7. #7
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    Quote Originally Posted by zzuppr View Post
    Can i see that list of items you have collected for future service/maintenance?
    This is all the notes I’ve taken with links to the stuff I am going to buy and tips for me personally to use when rebuilding it! Anything that seems wrong or would be bad for the truck tell me so I don’t make the mistake when I rebuild it!

    Maybe when doing a full rebuild take the thing apart in three different sessions, the front assembly the first time take it apart clean all the bearings, clean all the plastics in a bin full of hot soapy water and then rebuild it. Then do the rear assembly and disassemble clean rebuild then repeat on the middle part. Then after all of the assembly’s are done put it all back together. It would take longer but will be easier for me to remember where everything goes!

    Put muck off mo94 spray on the plastics while disassembled and it makes plastics shiny again. Then wipe it down with paper towel.

    Spray suspension pins and the holdy things with brake cleaner.

    Wipe bearing oil off the bearings after it gets a chance to seep in.

    When cleaning diffs wipe the grease off with paper towel then spray the outside of it down with brake cleaner to get off the rest of the grease. Then wipe again. Then when putting it back in put in more grease.

    Brake cleaner https://www.amazon.com/gp/product/B0...226389fa353932


    ALWAYS THEN USE BEARING OIL AFTER BRAKE CLEANER

    Bearing oil https://www.teamtrinity.com/trinity-...l-tep5010.html

    Bearing set https://www.amazon.com/gp/product/B0...36ac9eb0f84f8c


    Engineering grease general purpose automotive grease https://www.amazon.com/Valvoline-Mol.../dp/B000GAD07O

    Use stock silicon diff oil inside the diffs

  8. #8
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    Maintenance is entirely dependent on personal preference.

    I have an early 8S and havenít had it down to the diffs yet.

    I did break a steering knuckle this year and installed RPM arms with their bolt kits as preventive maintenance. I replaced the wheel bearing on the busted side also.

    This winter I intend to install RPM parts in the back end and I will probably pop open the diff just to see what condition itís in.

    Some people just love wrenching on their trucks. Thatís awesome. I love to hear their stories on hear. If you run in mud or sand expect to need more maintenance of course.

    Happy trucking. I just love my X.


    Sent from my iPhone using Tapatalk

  9. #9
    RC Champion Acidic01's Avatar
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    I use marine grease. Any automotive bearing grease will work.

    I use 500k diff oil wt inside front / rear diffs.

    Sent from my Pixel 3 XL using Tapatalk

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