Quadradrive Vari-Lok Mod Thread - JeepForum.com
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post #1 of 26 Old 12-09-2017, 07:42 PM Thread Starter
Monzsta
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Quadradrive Vari-Lok Mod Thread

Ok guys. Last weekend came and went, and I got nothing done due to being socked with the flu or some ungodly other virus. Wasted not only the weekend but two work days with fever and sick in bed. Not to mention the threat of snow which meant the Jeep needed to be in ready order.

Now that is getting out of me I have some work to do. I'll update this thread heavily tomorrow with pics and a good write up.

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post #2 of 26 Old 12-09-2017, 08:15 PM
03CUSEWJ
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Been lurking around this site waiting for this. Feel better, man!
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post #3 of 26 Old 12-09-2017, 08:32 PM
IOwnCalculus
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Following this as well.
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post #4 of 26 Old 12-10-2017, 12:51 PM
bugaboots
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Garage
Be interested in seeing this.

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post #5 of 26 Old 12-10-2017, 08:07 PM
coopdc78
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We got some here! Where ya from? Watching thread as well

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post #6 of 26 Old 12-13-2017, 07:57 AM
bamarider1
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Looking forward to your write up.
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post #7 of 26 Old 12-20-2017, 08:24 PM
JMZ101586
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So....

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post #8 of 26 Old 01-06-2018, 12:13 PM
Redjeepwj
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Cool Vari loc

Did I miss this write up?
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post #9 of 26 Old 01-06-2018, 02:44 PM
JMZ101586
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Can't miss what doesn't exist.

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post #10 of 26 Old 02-04-2018, 07:11 AM
JeepN95YJ
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Quote:
Originally Posted by Monzsta View Post
Ok guys. Last weekend came and went, and I got nothing done due to being socked with the flu or some ungodly other virus. Wasted not only the weekend but two work days with fever and sick in bed. Not to mention the threat of snow which meant the Jeep needed to be in ready order.

Now that is getting out of me I have some work to do. I'll update this thread heavily tomorrow with pics and a good write up.
I know life gets busy. Hope you can drop in and give us an update.
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post #11 of 26 Old 10-23-2018, 08:54 PM Thread Starter
Monzsta
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Back from the dead.

So where am I? Oh yeah. VariloK Mod. For those that are just seeing this thread, here's a brief synopsis.

The stock VariloK is a good unit. However it isn't a locker, it's an on demand limited slip. When one wheel spins... well you guys know the rest. What is little known however is that this unit has a pressure relief valve in the hydraulic circuit, limiting the absolute apply the pump can direct to the clutch pack.

This mod eliminates that relief valve, giving the VariloK the capability of 100% lock. Bear in mind this isn't a locker, even after the mod. It's still transparent in normal driving. It will still bleed down after lock up, This mod just allows it to lock harder.

To get to the pressure relief valve you have to remove your carrier. Then you have to remove the bearing on the ring gear side. This is a great time to regear or freshen up the bearings.

using a puller, torch, cut off wheel, your teeth, what have you, remove the bearing. If you go by the dealer they have the special tools to remove the bearing and most times it stays intact, but don't count on it. Pictured is the special tools.

Next you pull off the fluid pickup plate.

Underneath that you'll see a little metal reed held down with two tiny Allen screws. This is the pressure relief valve.

Once you remove this spring you'll see a little steel ball in a pocket.

You can either remove the ball, tap and plug the hole, weld it shut, or as I did, use a prick punch to close the metal around the ball locking it in place.

Then reinstall the pickup plate and bearing, and pop it back in the housing. Easy peasy!
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post #12 of 26 Old 10-23-2018, 08:59 PM Thread Starter
Monzsta
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After I got it back together I could tell an immediate difference beating around my property. My worn out cv axles were clicking much harder during turns and lodging the jeep in an off camber uphill climb resulted in heavy wheel spin from both tires where I could usually just get one to spin.
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post #13 of 26 Old 10-24-2018, 07:27 AM
jserna
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Haha!! Wow that is it, Crazy! Does it look like that ball valve could come out?
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post #14 of 26 Old 10-24-2018, 01:45 PM Thread Starter
Monzsta
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Quote:
Originally Posted by jserna View Post
Haha!! Wow that is it, Crazy! Does it look like that ball valve could come out?
Well, yeah, with the flat spring off it'll fall right out. There's a seat under there that the ball seals against. By peening it I'm preventing it from moving off the seat.

I did reinstall the spring plate over it.
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post #15 of 26 Old 10-26-2018, 02:40 PM
speedymopars
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This is awesome, thanks. What would be great is to slow down the bleed off, so once there is slip, it would lock for a minute or two. This would be great on the rocks and soft stuff so you wouldn't need a ton of wheel spin every 10 feet to keep going.

Do you think there is a way to control bleed off time? Do that with the pressure mod, you may have the closest thing to a locker you can get with this.

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