Rear diff gone after two tanks

[BlueRidge1]

Rear diff gone after two gallons

After roughly 1-1/2 to 2 gallons, I finally broke something that stopped me other than a spur gear - rear diff. Talk about a show stopper. The front was trying but the rear just drug everything down.

I just took it apart. Hope I can get it back together. Once I busted the diff open I found that 4 screws on the big gear (name?) were lose that held the whole assembly together. Once inside there were 4 gears - one on the top - one on the bottom - and two on the sides (they are mutually connected - and are held in by the plastic assembly slots - what are these gears called?). These gears were shaven. I guess due to the lo0sening of the 4 outside screws that hold everything together.

My questions are:

1) Should I use locktite on these four screws?
2) Did running on ice probably contribute to this - HIGH spinning RPM's?

The T maxx I was running suddenly got quicker....



:LoL: :LoL:

 

[El Pirata]

Just make sure the screws are in tight. If you'll feel better you can use blue locktite. It's possible but unlikely that that the ice had anything do do with your rear end gears getting trashed.

 

[BlueRidge1]

Ok, thanks Pirata.

I found this differential mod that uses 4 spider gears and diff fluid:

http://www.savageunleashed.com/article.php?story=20030428054217449

Does this look worthwhile while I'm in there?

 

[El Pirata]

I like having 4 gears in there personally but you can get by just fine with 2. As far as while you're working on it, yes it's worthwhile while you have it broken apart. As far as diff fluid goes I prefer a tad bit thicker, like times thicker for my rear diff to be exact. 1000 is not bad don't get me wrong but I like a more limited slip feature which is great off road but nearly useless on road.

 

[lillightingboy21]

The diff fluid is your choice. It depends if you want your back tires to spin faster then the front. But for off-road i would do what elpirata said...........Nick