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Willys Jeep Disk Conversion for $250

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Pope891 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Pope891 Quote  Post ReplyReply Direct Link To This Post Posted: 21 June 2020 at 1:19pm
I would say closer to 3/4"

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rick G Quote  Post ReplyReply Direct Link To This Post Posted: 21 June 2020 at 2:11pm
Best I can measure, it’s very close to 1”

You will need to do away with your original knuckle plugs and install flush mount Allen head plugs (or female square, like the differential plug).  Also, which Jeep rotor did you use?  There are two different thicknesses IIRC:  1.25” and 7/8”.  Mine is the 1.25” but I have the bracket that looks like the one in the previous photo.  Maybe your setup would work better with the thinner rotor.


Edited by Rick G - 21 June 2020 at 2:22pm
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1951 CJ3a #451-GB1-24268   “Some Assembly Required”

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jerkzack Quote  Post ReplyReply Direct Link To This Post Posted: 10 Sep. 2020 at 7:57pm
So I got the proper brackets from a half ton, turns out there is a difference. 3/4 ton Caliper brackets will NOT work with this swap.

1/2 ton on left, 3/4 ton on right. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jerkzack Quote  Post ReplyReply Direct Link To This Post Posted: 10 Sep. 2020 at 8:01pm
Now with knuckle plug, I got 1/2npt plugs that have recessed Allen fittings. They still stuck out too much so I tried to grind it down and ended up stripping out the allen plug. What do you guys do?! 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote redrunner Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep. 2020 at 9:31am
Drill and easy out time.
“Life is tough, but it’s tougher if you’re stupid.”
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rick G Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep. 2020 at 2:25pm
Drill it and ease out or weld a bolt to it and screw it out.  I’m not sure what clearance issues you were having but I know we are using different caliper brackets. Here’s what mine looks like.  Mine is an Allen head plug also.  


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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jerkzack Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep. 2020 at 7:44pm
Originally posted by Rick G Rick G wrote:

Drill it and ease out or weld a bolt to it and screw it out.  I’m not sure what clearance issues you were having but I know we are using different caliper brackets. Here’s what mine looks like.  Mine is an Allen head plug also.  


 
Judging by your pic I seem to have a clocking issue with my brackets. I'm going to attempt (again) to re-clock them.
 
Interesting enough, after looking at the photos in this link, it looks like they just ground the plug flush with the knuckle. Anyone else of the same opinion? (specifically photo #5)
 
 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rick G Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep. 2020 at 10:39pm
Yes, it looks like they ground it flush.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rockgod1619 Quote  Post ReplyReply Direct Link To This Post Posted: 06 Oct. 2020 at 7:19pm
This is going to be a stupid question, but what is the length on the lug studs needed for the Geo-Tracker disc conversion?  I can't find that information in this thread.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 67charger Quote  Post ReplyReply Direct Link To This Post Posted: 07 Oct. 2020 at 9:44am
Tire bolts / studs (these are longer that the stock studs by 3/8 of an inch to accommodate the thickness of the brake disk):

Napa Part Number 641-1112

This is what Stev said on the first page of this thread.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Nick_ Quote  Post ReplyReply Direct Link To This Post Posted: 07 Oct. 2020 at 10:15am
With Brennan's new setup utilizing an electric e-brake, I think his kit is the way to go.

Regarding the Chevy kit, someone messaged me about using Cadillac rear calipers. They have a mechanical parking brake mechanism. Would be interesting.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rockgod1619 Quote  Post ReplyReply Direct Link To This Post Posted: 07 Oct. 2020 at 10:23am
Originally posted by 67charger 67charger wrote:

Tire bolts / studs (these are longer that the stock studs by 3/8 of an inch to accommodate the thickness of the brake disk):

Napa Part Number 641-1112

This is what Stev said on the first page of this thread.

Missed that. Thank you. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 67charger Quote  Post ReplyReply Direct Link To This Post Posted: 07 Oct. 2020 at 10:26am
No problem. I converted my jeep to the geo tracker fronts and cj5 drum back and that jeep will stop on a dime now.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Evansjl Quote  Post ReplyReply Direct Link To This Post Posted: 16 Oct. 2020 at 3:11pm
So I have read through this thread a couple times and I am still confused. Can I do disk brakes with the stock 15" rims and spacers? there seems to be conflicting opinions. I have attached pictures of my rims for reference. I need to know if I need to budget for new 16" rims in addition to all the brake parts or not. it will really dictate what I do with tires/rims in the future as well. any help is much appreciated.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rockgod1619 Quote  Post ReplyReply Direct Link To This Post Posted: 17 Oct. 2020 at 11:55am
Evansjl, from the way I understand it, if you do the Geo Tracker conversion, you don't need spacers.  If you do the Chevy conversion, you do need spacers.  Anyone correct me if I am wrong!
I've got all my parts in, getting ready to do a Geo Tracker conversion on Papa Doc.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Evansjl Quote  Post ReplyReply Direct Link To This Post Posted: 17 Oct. 2020 at 11:58am
With stock 15” rims? 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rockgod1619 Quote  Post ReplyReply Direct Link To This Post Posted: 17 Oct. 2020 at 3:33pm
Looking back through the posts, it does seem like spacers have been needed with 15" rims.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote a4cj2a77 Quote  Post ReplyReply Direct Link To This Post Posted: 18 Oct. 2020 at 2:52am
16" wheels and the bolt pattern area is flat. I'm  to understand these are the stock wheels that have enough clearance. Other
Rims that aren't flat in that bolt pattern area may not work.
Phil






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