S MAxx Runs Backwards?
 

Posting this for a friend (I'm a plane guy). He just did some work on his gas S Mazz (no reverse gear installed) and now it only goes backwards. Any thoughts?

RE: S MAxx Runs Backwards?
 

Either the engine is running in reverse (wont be running very good if this is true) or one of the one-way clutches (aka one-way bearings) can be installed backwards.

RE: S MAxx Runs Backwards?
 

Where would these bearings/clutches be found?

RE: S MAxx Runs Backwards?
 

Or the diffs are installed upside down.  I did that on my Revo the first time I reassembled it.

RE: S MAxx Runs Backwards?
 

SMaxx has only 1 diff (rear), it is installed upside down.

<u>If</u> the engine were running backwards the OWB in the transmission would not allow it to move at all.

RE: S MAxx Runs Backwards?
 

I didnt think about that or the diff being upside down. I thought most models with diffs external to the transmission couldnt usually be installed upside down... Maybe I'm wrong..

RE: S MAxx Runs Backwards?
 

<p class="MsoNormal" style="MARGIN: 0in 0in 0pt"><font face="Times New Roman" size="3">All Maxx trucks (T/E/S) have diffs that can be easily be installed upside down.</font></p><p class="MsoNormal" style="MARGIN: 0in 0in 0pt"><font face="Times New Roman" size="3">It is a very common mistake with those models.

Even the Revo models have diffs that can be istalled incorrectly, they have an UP stamped on the diff housing and it still happens:)</font></p>

RE: S MAxx Runs Backwards?
 

Yes it does!  When I did it, I looked for the up markings, aligned it properly, then put it down for a second to grab another part.  Inverted it without realizing it, and presto, reverse gearing!

RE: S MAxx Runs Backwards?
 

does anyone know the part number for the parts needed to make the s maxx to run reverse and to make it 4x4

RE: S MAxx Runs Backwards?
 

Here's the kit to make it 4X4 part#5191X.

http://buy.traxxas.com/product_info....oducts_id=7527

Also check diff installation of the front. The other common mistake is to flip it and the wheels spin in opposite directions.