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  #1  
Old 02-16-2006, 02:12 AM
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Default locked differential (EVO)...Tutorial

Well, I fabbed myself up a couple of locked diffs a couple days ago, and I thought I'd share how I did it...it was pretty simple

first off....the whole I'm not responsible for damages to you or your xmod if you do this. when cutting/drilling shards of plastic and metal are flying, if you don't wear safety goggles and loose your sight, it's your own problem...etc. etc. etc.

1. remove diff, however you'd like to do this, it doesn't matter, just pull it out.

here's the diff, dremel cut-off wheel, and spindle. respectively:


2. cut spindle in half, I used a leatherman and dremel cut-off wheel, worked quite smoothly, but however you'd like to do it is fine


3. Drill a 1/16's inch diameter hole through the diff. making sure to drill it between 2 of the 3 spider gears, so as to not destroy one of these.






4. insert spindle through hole


5. replace bearings (or bushings) and reinstall diff



now, the spindle can be removed to unlock the diff, however (at least with both of mine) some debris will stay in the diff, and cause it to bind some. I'm not sure if this will cause damage, but it will effect future functionality

also, this would probably work for the gen 1 chassis, but I haven't tried it (and don't plan to, my skyline likes it's open diffs)

Last edited by Numbchux; 03-04-2006 at 07:15 PM..
  #2  
Old 02-16-2006, 02:28 AM
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if you could make this more descriptive with maybe
more images of step-by-step, we could make this
a "sticky"
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  #3  
Old 02-16-2006, 04:19 PM
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Quote:
Originally Posted by torredo
if you could make this more descriptive with maybe
more images of step-by-step, we could make this
a "sticky"
like that?
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Old 02-16-2006, 07:13 PM
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i like that idia of drilling the holes i would have just glued it but this is better cause u can un-lock it
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Old 02-16-2006, 07:32 PM
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where is the spindle from? IS IT FROM A GEN1 CAR?
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Old 02-16-2006, 07:56 PM
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i will do this when i get my truck.. good job comin up with the idea..but is there a way to get those debris that are left in the dff??
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Old 02-17-2006, 12:12 AM
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Quote:
Originally Posted by oddryu
where is the spindle from? IS IT FROM A GEN1 CAR?
comes with the stage 2 motor kit, it's an extra for the intermediate gear to ride on. but you could use anything small like that, be creative

not sure about removing the debris, I couldn't find a way to get the diff apart, that's why I did it this way, instead of wrapping something around the spider gears like the gen 1s....
  #8  
Old 02-17-2006, 01:25 AM
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nice tut, long fingernails.
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Old 02-26-2006, 04:31 PM
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a compressed air canister might be able to get the debrie out....since it blows
into the diff, it'll make the loose debrie flie out...or...thats whati think
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Old 02-26-2006, 07:12 PM
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Quote:
Originally Posted by valkrie hunter
a compressed air canister might be able to get the debrie out....since it blows
into the diff, it'll make the loose debrie flie out...or...thats whati think
it might, but the spaces are so small, I dont think even that would work completely, but it'd be better than nothing.

until someone figures out a way to take the evo diffs apart, we're kind of stuck with this.

I also did some other grinding on the side of the diff to make room for a screw head. but I just couldn't shave enough off to avoid it putting pressure on the bearing. so might very easily could have more debris than anyone elses might if you just drill the hole.

truth be told, I have no interest in un-locking my diff, for what I'm using it for, there's just no reason.
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Last edited by Numbchux; 02-26-2006 at 07:15 PM..
  #11  
Old 03-23-2006, 02:50 AM
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take a small nail, and knock the pin out of the diff, and then pull it apart glue it whatever the put the pin back in if done correct the pin should be as tight as before you took the diff apart its really easy....stop being scared to experiment, yall act like you got to have some1 hold your hand to do any of this
  #12  
Old 03-23-2006, 03:26 AM
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Quote:
Originally Posted by fordredneck
take a small nail, and knock the pin out of the diff, and then pull it apart glue it whatever the put the pin back in if done correct the pin should be as tight as before you took the diff apart its really easy....stop being scared to experiment, yall act like you got to have some1 hold your hand to do any of this
I have no problem experimenting, but I couldn't see how the thing came apart, if the pin was just pressure fit, or if it had a nut of somesort on the end. so I did this, and I have no reason to undo it.

if this is the case, awesome, then the evo diff can be locked the same way as the gen1 diff.
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Old 03-23-2006, 02:35 PM
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i will get some pics to show yall, goto wait for my camera to walk to my house so, it might be a few days, its really easy just got to apply pressure to the pin and it will pop out
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Old 03-24-2006, 12:14 AM
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yea to take the diff apart al u need a a pen and a hammer u put the pen on the right side of the car if ur looking at it from the back. them hit the pen lightly and the pin should move i switched from the pen to the screwdriver that u get from rs with the car to move it even farther.. and to put it back together u just hit the other side unti it dosent move n e more...ill make a tut if u guys want me to if u want me to do it i should have the tut done on sunday
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Old 03-24-2006, 01:13 AM
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ya man make that a tut thats a good idea!
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  #16  
Old 03-24-2006, 09:24 AM
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is this only for the back diff, or would it help just as much in the front?
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Old 03-24-2006, 04:19 PM
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Quote:
Originally Posted by mrc5corvette
is this only for the back diff, or would it help just as much in the front?
I did it this exact same way with both the front and rear diffs. but keep in mind, locking your front diff greatly limits your turning ability. I would only recommend doing it on a dedicated offroad rig.
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  #18  
Old 03-24-2006, 04:42 PM
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ok. im having some trouble with the front diff, but it is in the evo car., i think one of the dogbones is stripped.
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Old 04-03-2006, 09:04 AM
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i just put a dab of superglue in it. works real fine!
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Old 07-11-2006, 10:41 PM
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This works on evo cars right and does it mater what i put in the holes any rod that fits or does it have to be that one rod?

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