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Old 05-06-2016, 04:26 PM   #1
940Orlando
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Default Simple locker mod G80

Hello, I just did my own version of the locker mod on the g80. Not sure if anyone has done this, but it can be done in probably less than an hour.

All I did was drill and tap the carrier and install a set screw (5/16), ground the set screw until it recesses into the carrier and staked it in. The set screw keeps the weighted arm from springing out and disabling the locking mechanism.

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Old 05-06-2016, 05:38 PM   #2
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Doesn't look like a lot of meat on the top of that set screw. I'm just worried if that lets go, the kool-aid man is going to take pay a visit with a grenade.
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Old 05-06-2016, 10:00 PM   #3
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Sure looks like it will last for minutes and then break
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Old 05-06-2016, 10:49 PM   #4
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That will work just fine, nice idea.

I used a piece of 3/32 welding rod tacked to the housing to hold the weight down. No problem.
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Old 05-06-2016, 10:50 PM   #5
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Might as well swap a open diff and do a Lincoln locker.

Won't that chirp the wheels when turning?
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Old 05-06-2016, 11:52 PM   #6
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Quote:
Originally Posted by NO_SPRK View Post
Might as well swap a open diff and do a Lincoln locker.

Won't that chirp the wheels when turning?
No it doesnt lock it, it just keeps it in lsd mode where factory operation that paw flies out over 25mph and makes the g80 basically an open diff. This mod and any other with the spur/paw whatever you want to call it makes it behave like a normal locker at all speeds and not just under 25mph
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Old 05-07-2016, 12:02 AM   #7
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You can just lop the weight off no? Seems easier, IDK. Just stick it in the vice and death wheel the weight off? Same difference no?

The "always locked" more or less "always locked" G80 is a lot easier on the axle splines than the welded and a lot less of a PITA to move around the parking lot.
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Old 05-07-2016, 12:04 AM   #8
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Quote:
Originally Posted by Kjets On a Plane View Post
You can just lop the weight off no? Seems easier, IDK. Just stick it in the vice and death wheel the weight off? Same difference no?

The "always locked" more or less "always locked" G80 is a lot easier on the axle splines than the welded and a lot less of a PITA to move around the parking lot.
Yep for sure, different ways to do the same basic thing.
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Old 05-07-2016, 12:07 AM   #9
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okay i didnt know it has different settings.

but yeah good mod but i would be worred about that thing coming out

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No it doesnt lock it, it just keeps it in lsd mode where factory operation that paw flies out over 25mph and makes the g80 basically an open diff. This mod and any other with the spur/paw whatever you want to call it makes it behave like a normal locker at all speeds and not just under 25mph
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Old 05-07-2016, 12:11 AM   #10
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^Yes, 2 tools (vice/death wheel) and subtraction sounds safer than addition and many tools, chips, (drill and tap) + modified set screw.

Just takes a second to take the hat off of it to lop the weight, though you do have to dig the ring gear off of it I guess, and that's it's own set of tools to get the oil slinger off of there (press the bearing off carefully or snip the oil slinger).
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Old 05-07-2016, 12:31 AM   #11
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Quote:
Originally Posted by NO_SPRK View Post
Might as well swap a open diff and do a Lincoln locker.

Won't that chirp the wheels when turning?
Nope. The beauty of a G80 is it's only welded when necessary.

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Originally Posted by Canadan View Post
No it doesnt lock it, it just keeps it in lsd mode where factory operation that paw flies out over 25mph and makes the g80 basically an open diff. This mod and any other with the spur/paw whatever you want to call it makes it behave like a normal locker at all speeds and not just under 25mph
Yep.

Quote:
Originally Posted by Kjets On a Plane View Post
You can just lop the weight off no? Seems easier, IDK. Just stick it in the vice and death wheel the weight off? Same difference no?

The "always locked" more or less "always locked" G80 is a lot easier on the axle splines than the welded and a lot less of a PITA to move around the parking lot.
Not easier than welding a tab on to keep the weight down.
Probably easier than drilling and tapping, though I suspect the
OP did not remove the carrier from the housing.

Dismantling and cleaning the parts is always recommended.

And yes, no issues at parking speeds.

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Originally Posted by Kjets On a Plane View Post
^Yes, 2 tools (vice/death wheel) and subtraction sounds safer than addition and many tools, chips, (drill and tap) + modified set screw.

Just takes a second to take the hat off of it to lop the weight, though you do have to dig the ring gear off of it I guess, and that's it's own set of tools to get the oil slinger off of there (press the bearing off carefully or snip the oil slinger).
I would for sure worry about the debris from drilling/tapping. OP
should change the oil back there shortly.
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Old 05-07-2016, 03:41 AM   #12
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Quote:
Originally Posted by Kjets On a Plane View Post
You can just lop the weight off no? Seems easier, IDK. Just stick it in the vice and death wheel the weight off? Same difference no?

The "always locked" more or less "always locked" G80 is a lot easier on the axle splines than the welded and a lot less of a PITA to move around the parking lot.
That's what I did, there used to be a writeup with pics that even showed where to cut the weight. I never had any problems with mine and have 50+ hours of track time on it.
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Old 05-09-2016, 01:49 PM   #13
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The point was you don't need to take anything apart. Just remove the cover, drill a hole, tap it and put a set screw in it. Adjust the screw height by grinding it until the set screw recesses into the carrier, set it so it just touches the arm, and stake it in. Not going anywhere.

I was able to flush it out and wipe it all down, then reassemble the cover.
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