RC Monster Trucks Discuss rc monster trucks in this forum

JB Weld diff locker

Reply

Old 01-20-2008, 09:21 PM
  #1  
zud00
Senior Member
Thread Starter
 
zud00's Avatar
 
Join Date: Jan 2007
Location: Warren, IN
Posts: 338
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default JB Weld diff locker

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?
zud00 is offline  
Reply With Quote
Old 01-20-2008, 09:35 PM
  #2  
tmaxx_man87
Senior Member
 
Join Date: Sep 2007
Location: westernport, MD
Posts: 556
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: JB Weld diff locker

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...
tmaxx_man87 is offline  
Reply With Quote
Old 01-20-2008, 09:41 PM
  #3  
zud00
Senior Member
Thread Starter
 
zud00's Avatar
 
Join Date: Jan 2007
Location: Warren, IN
Posts: 338
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: JB Weld diff locker

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.
zud00 is offline  
Reply With Quote
Old 01-20-2008, 09:45 PM
  #4  
tmaxx_man87
Senior Member
 
Join Date: Sep 2007
Location: westernport, MD
Posts: 556
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: JB Weld diff locker

oh, idk then...
tmaxx_man87 is offline  
Reply With Quote
Old 01-21-2008, 07:16 AM
  #5  
infernalstone
Senior Member
 
infernalstone's Avatar
 
Join Date: May 2004
Location: Farmington, MI
Posts: 626
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: JB Weld diff locker

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.
infernalstone is offline  
Reply With Quote
Old 01-21-2008, 08:14 AM
  #6  
mazdab2600
Senior Member
 
mazdab2600's Avatar
 
Join Date: Jul 2007
Location: north bay, ON, CANADA
Posts: 1,275
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: JB Weld diff locker

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
mazdab2600 is offline  
Reply With Quote
Old 01-21-2008, 08:49 AM
  #7  
binaryterror
Senior Member
 
binaryterror's Avatar
 
Join Date: Jan 2004
Location: Roseville, MI
Posts: 2,861
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: JB Weld diff locker

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.
binaryterror is offline  
Reply With Quote
Old 01-21-2008, 09:55 AM
  #8  
zud00
Senior Member
Thread Starter
 
zud00's Avatar
 
Join Date: Jan 2007
Location: Warren, IN
Posts: 338
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: JB Weld diff locker

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.
zud00 is offline  
Reply With Quote
Old 01-21-2008, 10:05 AM
  #9  
hilifemt
 
hilifemt's Avatar
 
Join Date: Feb 2007
Location: Bozeman, Montana
Posts: 707
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: JB Weld diff locker


ORIGINAL: zud00

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.
hilifemt is offline  
Reply With Quote
Old 01-21-2008, 10:13 AM
  #10  
zud00
Senior Member
Thread Starter
 
zud00's Avatar
 
Join Date: Jan 2007
Location: Warren, IN
Posts: 338
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: JB Weld diff locker

So if i use silly putty, do you take all the gears out of the inside? Have you tried it hilifemt?
zud00 is offline  
Reply With Quote
Old 01-21-2008, 10:15 AM
  #11  
biglaw22
Junior Member
My Feedback: (1)
 
Join Date: Jan 2008
Location: Menomonie, WI
Posts: 2
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: JB Weld diff locker

I've used the Silly putty in my clod and it works great
biglaw22 is offline  
Reply With Quote
Old 01-21-2008, 10:19 AM
  #12  
hilifemt
 
hilifemt's Avatar
 
Join Date: Feb 2007
Location: Bozeman, Montana
Posts: 707
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: JB Weld diff locker

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.
hilifemt is offline  
Reply With Quote
Old 01-21-2008, 11:06 AM
  #13  
mazdab2600
Senior Member
 
mazdab2600's Avatar
 
Join Date: Jul 2007
Location: north bay, ON, CANADA
Posts: 1,275
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: JB Weld diff locker


ORIGINAL: zud00

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.

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.
mazdab2600 is offline  
Reply With Quote
Old 01-21-2008, 12:06 PM
  #14  
binaryterror
Senior Member
 
binaryterror's Avatar
 
Join Date: Jan 2004
Location: Roseville, MI
Posts: 2,861
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: JB Weld diff locker


ORIGINAL: mazdab2600
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.
binaryterror is offline  
Reply With Quote
Old 01-21-2008, 01:16 PM
  #15  
infernalstone
Senior Member
 
infernalstone's Avatar
 
Join Date: May 2004
Location: Farmington, MI
Posts: 626
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: JB Weld diff locker

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.
infernalstone is offline  
Reply With Quote
Old 01-21-2008, 03:57 PM
  #16  
SaVaGe MaN SS
Senior Member
 
SaVaGe MaN SS's Avatar
 
Join Date: Jul 2007
Location: Toledo, OH
Posts: 547
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: JB Weld diff locker

just get some maximizer diff locker that are made for the savage.
SaVaGe MaN SS is offline  
Reply With Quote
Old 01-21-2008, 08:32 PM
  #17  
black mamba
Senior Member
 
black mamba's Avatar
 
Join Date: Jul 2005
Location: Hickory Hills, IL
Posts: 5,388
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: JB Weld diff locker

ORIGINAL: tmaxx_man87

You take out all the grease from inside the diff, pack the gears full of jb weld and put it back together.
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.

black mamba is offline  
Reply With Quote
Old 01-21-2008, 09:02 PM
  #18  
HighClassBasher
Senior Member
 
Join Date: Apr 2007
Location: Mansfield, PA
Posts: 324
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: JB Weld diff locker

[quote]ORIGINAL: gravediggerracing

ORIGINAL: tmaxx_man87
......but once you experience a locked diff or diffs off road, you'll never go back to open diffs again anyways.
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
HighClassBasher is offline  
Reply With Quote
Old 01-22-2008, 08:31 PM
  #19  
zeddfirstwizard
Senior Member
 
Join Date: Apr 2007
Location: Kannapolis, NC
Posts: 215
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: JB Weld diff locker

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.
zeddfirstwizard is offline  
Reply With Quote

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service