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Unread 05-24-2013, 11:09 AM   #1
BlueRubiconrich
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WJ Disc? on a 86 dana 44 rear

Hi I'm looking at putting Disc on my Factory 86 Dana 44 rear axle.
I'm looking to go with junk yark parts.
I know I will have to redrill the rotors unless I get teraflex dual bolt pattern rotors.

What is better a ZJ,WJ or even a JK?

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86 CJ7 258,T18,Scout Dana300,twin sticks,Dana44's,4W Disc, locked,35's,YORK OBA,Warn 8274,fullcage.
51 M100 1/4 ton Jeep trailer
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Unread 05-24-2013, 11:30 AM   #2
82JeepCJ7
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2dr Suzuki (Geo) tracker rotors are the correct bolt pattern.
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Unread 05-24-2013, 11:46 AM   #3
BlueRubiconrich
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is that front or rear ?and these will fit with the ZJ brakes?
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86 CJ7 258,T18,Scout Dana300,twin sticks,Dana44's,4W Disc, locked,35's,YORK OBA,Warn 8274,fullcage.
51 M100 1/4 ton Jeep trailer
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Unread 05-24-2013, 12:54 PM   #4
waterdowg
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Quote:
Originally Posted by BlueRubiconrich View Post
is that front or rear ?and these will fit with the ZJ brakes?
Tracker only has Front rotors. You will need to check the with of the rotors. The Tracker 2 dr rotors are about 10mm thick. The tracker 4 dr rotors are 17mm or 22 mm. I can't remember
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Unread 05-24-2013, 01:54 PM   #5
dg6772
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I used the same rotors front and rear, from a 1978 cj. I converted mine to GM brakes on all four corners. It took a little work but was not bad.

Dave in Muskegon
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Unread 05-24-2013, 02:03 PM   #6
Cutlass327
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But keeping the e-brake is an issue if using the front rotors. I would love to convert mine to a rear rotor setup but keep the e-brake...

Let me know if you have any luck!
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Unread 05-24-2013, 02:21 PM   #7
dg6772
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I plan on using line locks for e-braking. One for front and one for the rear, so I'll have options and it's fairly inexpensive to add to system.

Dave in Muskegon
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Unread 05-24-2013, 04:46 PM   #8
BlueRubiconrich
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that's why I'm looking at the ZJ/WJ /JK rear brakes for the E-brake.
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Rubicon Rich ,05 TJ Rubicon: PatriotJeepers.com
86 CJ7 258,T18,Scout Dana300,twin sticks,Dana44's,4W Disc, locked,35's,YORK OBA,Warn 8274,fullcage.
51 M100 1/4 ton Jeep trailer
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Unread 05-24-2013, 06:48 PM   #9
BlueRubiconrich
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86 Dana 44 axle hole spacing
up 2" center of bolt hole to center of bolt hole
across 3 5/16" center of bolt hole to center of bolt hole

Ford 8.8

up 2" center of bolt hole to center of bolt hole
across 3 9/16" center of bolt hole to center of bolt hole

Looks like better to use ford 8.8 brackets instead of ZJ or WJ.
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86 CJ7 258,T18,Scout Dana300,twin sticks,Dana44's,4W Disc, locked,35's,YORK OBA,Warn 8274,fullcage.
51 M100 1/4 ton Jeep trailer
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Unread 05-26-2013, 09:39 AM   #10
BlueRubiconrich
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If I use Ford 8.8 brakes they will fit with a little less work .I will have the E-brake same as a ZJ and Crown Vic. the bottom hole will have to be hogged out and the center hole.
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Rubicon Rich ,05 TJ Rubicon: PatriotJeepers.com
86 CJ7 258,T18,Scout Dana300,twin sticks,Dana44's,4W Disc, locked,35's,YORK OBA,Warn 8274,fullcage.
51 M100 1/4 ton Jeep trailer
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Unread 05-26-2013, 03:30 PM   #11
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An alternative would be to get your rotor and caliper, and then make your own caliper brackets. There are a few rotors that might be worth looking into.. Ford F150, CJ D30 (7/8" thick), Sammy/Tracker Rotors, Scout Fronts?.. basically anything with a 5x5.5" bolt pattern that has a "hat" large enough to fit over the axle flange. Then, a Caliper (with parking brake provisions) that will work with the rotor.

On my own CJ, I'm running a Scout D44 rear axle. I was able to take a D30 rotor and fit it over the Scout axle by turning the axle flange down about 1/4" on the lathe. A larger rotor hat wouldn't require that. I then used Caddy El Dorado Calipers (off fleabay). I had to make a 1/8" thick shim to fit under the outside brake pad in order to take up some of space between the rotor and the brake pads. Then, I simply bolted the rotors in place, slide the calipers on them (clocked where I wanted them), and made a simple template from foamboard to make my own caliper brackets.

Not sure if you have CAD capability, but even if you don't, a "foamboard" template of the bracket could be copied in steel pretty easy.

If you can get a good template (or CAD DXF File), hit me up and I can cut it on my CNC Plasma Table from some 3/8" plate. Ship the raw brackets and you could mark/drill bolt holes to make sure they're accurate.
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Unread 05-26-2013, 03:45 PM   #12
dg6772
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Many racing suppliers sell caliper brackets for little cash. Some even clamp to axle instead of welding.

Dave in Muskegon
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Unread 05-26-2013, 04:05 PM   #13
82JeepCJ7
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Ford SVT rear calipers work well. And they have a built in parking brake.
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Unread 05-27-2013, 07:39 AM   #14
BlueRubiconrich
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thanks guys a lot of good info.
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86 CJ7 258,T18,Scout Dana300,twin sticks,Dana44's,4W Disc, locked,35's,YORK OBA,Warn 8274,fullcage.
51 M100 1/4 ton Jeep trailer
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