Anyone having Savage diff problems?

[jhautz]

Thats a great tip on the difs. I like it. Cheap and effective. Do you know the gear ratio on the CEN difs? I know they use some funky tooth counts in their buggy and truggy. The Buggy is something like a 9T pinion and 26T ring gear. Are these the same gears? If so I have a couple of those diffs sitting here in my CEN parts bin as spares from my buggy tht I never needed. If they are the same, I might just do this mod. I think the CEN buggy difs are Mod1.5 gears rather than the standard mod1.

I had issues with my Savage X difs at first. I had the plastic cups from the box, I kept cracking the cup not breaking the gears. After tearing up a few sets of those rather quickly I upgraded to the aluminum cup in the rear and shimmed it up properly and I never had another issue. The front dif is still the stocker wth the plastic cup and I never had an issue so its still running. I have the aluminum cup for it sitting here in a box along with a full set of gears and pinion for it but I am not going to replace it untill it breaks. I also bought aluminum bulk/gearbox for the rear but again I have been waiting to see if I needed it before installing it. I didnt want to just fill the truck with aluminum just for the hell of it. And so far I havent needed it.
Of course I'm not running a 1521 either. Just a little 1940.

[MTBikerTim]

Originally Posted by jhautz

Thats a great tip on the difs. I like it. Cheap and effective. Do you know the gear ratio on the CEN difs? I know they use some funky tooth counts in their buggy and truggy. The Buggy is something like a 9T pinion and 26T ring gear. Are these the same gears? If so I have a couple of those diffs sitting here in my CEN parts bin as spares from my buggy tht I never needed. If they are the same, I might just do this mod. I think the CEN buggy difs are Mod1.5 gears rather than the standard mod1.

Of course I'm not running a 1521 either. Just a little 1940.

I forgot to mention the diff ratios. Yes they do change quite a bit after doing this. The diff ratio is 26 and 9 so they are probably the same diffs as the buggy. You could check by looking at the part numbers in the manuals for the gst and buggy.

After doing this mod I now have 2 spare diffs so it will be interesting to see if the stock diffs in my nitro die before these. Personally my bet is on the bearings in the stockers to be the first thing to go.