I'm thinking about making one of these for my Savage; I have a few questions.
1. What do you coat the inside of the diff case with before putting the JB weld in so that it does not stick?
2. Should I make the molds in the stock plastic cases or the alloy cups?
3. For bashing, should I just make one for the rear or one for the front and one for the rear?
4. How long do you let the JB Weld dry?
5. Any other tips?

you take out all the grease from inside the diff, pack the gears full of jb weld and put it back together, it will take over night to dry unless you use jb quick or quicksteal, ive used quicksteal it works greal, but all of these methods are perminant...

Someone did one that was removeable. I could use the stock plasctic cups to do this^^^^, but then I'd have to buy an extra set of diff drive cups and bearings. I'm trying to avoid that.

oh, idk then...

I wouldn't lock the front diff. It'll seriously reduce the steering. Having the rear one locked will likely be noticable. If you still want restricted movement, they make 100k diff fluid. It gives, but not very easily. But it does have some give.

i think you may have seen the posting that i was in.
i used the plastic diff cup.
light coating of grease and packed full of jb weld.
then installed an old crown gear and some old drive cups to make/mark the shaft holes.
let it dry overnight then pressed out the insert(locker).
shaped the grove for the drive cup pin.
its an insert just like the maximizer locker and i can still go back to the 4 spider setup at anytime.






http://s5.photobucket.com/albums/y20...lddifflock.flv
http://s5.photobucket.com/albums/y20...ockedvideo.flv

That won't hold up long...even a real packing of JB weld will break down and turn to dust quickly.

You want a locker with an option to change later, use Silly Putty. Remove the grease and jam in a ton of silly putty and that'll make it lock but its still easy to take out.

I agree on a Savage you aren't doing anything but wasting time. The Locked diff will slow turning down and increase tire wear. The only good thing about a locker is for crawling and a Savage is terrible at crawling...all nitros are.

thanks for the replies. Initially I wanted to make one for bashing in the snow but I never had the chance to run in the snow. Mazba, how has yours held up? that was the one I was referring to.
Silly putty?? That's silly. never thought of that.

Ive heard only good things about silly putty for this use. and, it's reversible.

So if i use silly putty, do you take all the gears out of the inside? Have you tried it hilifemt?

I've used the Silly putty in my clod and it works great

zud00 Date 1/21/2008 10:13:38 AM
So if i use silly putty, do you take all the gears out of the inside? Have you tried it hilifemt?


I've never tried it, just read about it a few places in forums. I believe you leave all the gears in, and fill in silly putty in all the open space. I'll try to find a link and pic.

that video was the 3rd tank on the lockers with the lrp spec3.
its still holding.
as for the silly putty thats just like filling the diff with thick grease acts as a limited slip not a locker.the spider's can still spin/walk around the gears.

Try it, it is a locker, not a limited slip.

Agree with above. Sorta. Is it possible for the diff to still move. Yes. But there isn't any combination of tire and engine that you can put in the that truck to make it move without literally clamping down one wheel and binding it so that it can't possibly rotate.

just get some maximizer diff locker that are made for the savage.

This is how I did my front and rear. I used electric motor cleaner to clean out the diff cases and gears. Then simply drop the gears back in and fill the case up with JB Weld. Super simple and super strong and I highly doubt the JB Weld will ever fail. The only bad part is that it is permanent......but once you experience a locked diff or diffs off road, you'll never go back to open diffs again anyways.

[quote]ORIGINAL: gravediggerracing

Oh yeahLocked diffs make me[:'(][:@][:'(] Locked diffs suck BAD for anything but rockcrawling,not sure what you are talking about.....unless you rockcrawl with a nitro

I did this to my rusty , Just left all the gears in and packed it with jb weld, but I have A 3.3 with A jato rear now so I'll be looking for A new way to do it now, I liked the rear locked but it does take away from the steering.