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D30 Lock Right Install
02-16-2015, 01:15 PM (This post was last modified: 02-16-2015 01:29 PM by Smithy.)
Post: #1
D30 Lock Right Install
Gonna do a quick write up on how to install a lunchbox locker. Installation is similar regardless of manufacturer, but there are differences from axle to axle.

The illustrations that came with this one are somewhat useless.

   

First, this type of locker is meant to replace the spider gears in an open differential. Most will look like this when viewed from the side.

   

They will not work in a posi or locker case.

Next disassemble the differential by removing the pinion shaft. Some are held with a bolt, this one uses a roll pin.

   

Then remove the pinion and side gears. Save the shims from under the side gears for later use.

   

This is what is included in the kit:
Side gears
Drivers
Pinion shaft
Stop pins
Bias springs
Spacers

   

Install the old side gear shims under the new side gears and set into place. Tip: use a little grease to hold everything in place.

   

Next install the stop pins into the drivers so the pins sit flush. There are two sets of holes, one way they sit flush, the other way they dont.

   

Install the smaller bias springs into the larger and set aside

   

Set the spacers inside the drivers, then place the assembly inside the case. Line up the side ear teeth and slide each stop pin over into the opposite driver.

   

Next slip in the bias springs

   

Slide in the new pinion shaft

   

Secure

   

And that's it. No messing around setting backlash or anything once you are done, and if the pinion shaft can be removed with the ring gear bolted in place you can do the installation in the vehicle.


A diagram from another manufacturer of how everything fits together. The terminology is different, assembly is the same


.jpg  ggp_quick_lok_inset.jpg (Size: 6.35 KB / Downloads: 44)

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02-17-2015, 02:47 PM
Post: #2
RE: D30 Lock Right Install
lol, wtf is that a picture of????? amazing.... good write up though, anything like this should be a sticky!
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02-22-2015, 10:33 PM
Post: #3
RE: D30 Lock Right Install
(02-17-2015 02:47 PM)Dmiller Wrote:  good write up though, anything like this should be a sticky!

I agree!

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07-08-2015, 07:07 PM
Post: #4
RE: D30 Lock Right Install
Do you know if these are carrier dependent? It's going to be a while before I can have the thing regeared but I wanted to throw a front locker in it. Seems like a lot of them that replace the carrier (these dont?) are dependent on gears. So if I bought an auto locker for 3.55 gears, I wouldn't be able to use them when I go to 4.56.

Is that true for the lock right?

Mike
2000 XJ Cherokee - 3.5'' lift / 32'' Tirerecapper Pizza Cutters / Front Locker
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07-09-2015, 07:15 AM
Post: #5
RE: D30 Lock Right Install
Carrier break doesn't matter with a lunchbox. So you can use it with the 3.55 and the 4.56 gears.

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