Newbie with Frog questions

[tim126]

Hello! I hope some of you guys have used the Tamiya Frog re-re and/or the original.

I owned an original when they came out, and stripped a few hex-shafts. No Biggie. I never had problems with the shafts popping out.

So I was excited when I saw they re-released it (lost all my frog stuff years ago). I built it, and noticed that they switched to dog-bones. I thought it was a good idea.

I run the car with an 8.4v battery and a stock motor. I have been plagued with problems with the dogbones popping out. Mostly on the right side. The shafts seemed to be a bit short, and flex in the trailing arms under extreme manuvers flexed a bit, allowing the shaft to push out.

So I bought the Tamiya upgrade kit, and put it in thinking that would fix it. I took the car out on damp, bumpy grass. Within minutes I had the same problem. Obviously the outer end of the shaft is locked in, so it popped out on the inner end, and the socket came out of the gearbox.

I just finished a (hopefull) solution. I drilled the stock alum trailing arm brackets to add a 3rd screw (like a blackfoot has).

Anyone else run into this? I also have a vintage blackfoot that has no such problems.

[Dirt King]

I put the o-rings out of shocks inside the cups that hold the dogbone. That puts some tension on the dogbone so it doesn't chatter around and pop out as easily.

[tim126]

Tried that with no relief a few weeks ago. I havent had a chance to test it yet, but I'm hoping the extra screw will fix it.

I've also noticed that CRP has a replacement supports that are tougher than the stockers. Might give that a try.