I am putting my RC4WD axles together and want to lock the rear diff. I bought a CEN (I think) locker a while back and can't get it to fit. I'm using the plastic diff housings so some sort of DIY solution is what I want. JB weld? Silly Putty? Paper towels? They are all on YouTube but I'm not sure how JB weld would hold up. The silly putty seems like it would be easy to clean out if the housing breaks. Now that Photobucket got greedy hardly any pictures work anymore. I already upgraded to the 4 pinion inferno diffs a while back. At this point, I would be willing to pony up for some aluminum diff housings too. With the 4 link setup, and everything going on it's really a PITA to take these things apart. I want a truck I just charge the batteries and can drive it off a cliff and keep going.