Drum to disk swap - Mustang Evolution

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Old 03-07-2014, 09:03 AM   #1
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Drum to disk swap

Hey guys I'm looking into doing the 5 lug swap on my 82 fox. Iv heard I need to update my rotors with bigger ones and different calipers to go with it in the front. Iv got drum brakes in the back but I would like to have disk brakes all the way around. I'm going to be getting the rotors and calipers and anything else I need at the local scrap yard because they have cheap deals.

My question is what in all would I need to swap my stock rotors (8" or 9") with bigger ones.
Do I need different calipers or would my stock ones work? The car used to be a 4 banger.
And what do I need to do to swap my drum brakes for disks
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Old 03-07-2014, 10:06 AM   #2
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I am going to be doing this also on my fox., But i am only doing the rear 5 lug conversion with disk brakes from an SN95. Why do you want to switch front rotors? Also if you plan to do the rear disk conversion you're going to need a new master cylinder.
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Old 03-07-2014, 10:29 AM   #3
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I am going to be doing this also on my fox., But i am only doing the rear 5 lug conversion with disk brakes from an SN95. Why do you want to switch front rotors? Also if you plan to do the rear disk conversion you're going to need a new master cylinder.
For one there 4 lug rotors and I have 5 lug rims and tires ready to throw on. The tires are 17x9s and heard the rotors need to be bigger because the stock size have a hard time stopping them. Not sure how true this is but that's just what iv heard.
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Old 03-07-2014, 11:17 AM   #4
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Oh haha well I can't help very much with the front conversion cause I have done no research for it. It doesn't seem as hard as the rear tho because you don't need to replace the whole axle right? Haha

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Old 03-07-2014, 12:00 PM   #5
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Oh haha well I can't help very much with the front conversion cause I have done no research for it. It doesn't seem as hard as the rear tho because you don't need to replace the whole axle right? Haha

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This will definitely help you then for the front and the rear.

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Old 03-07-2014, 09:46 PM   #6
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This will definitely help you then for the front and the rear. 87-93 Ford Fox Body Mustang Brake Upgrades
Thanks I will look into it! The old drums just don't cut it anymore lol
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Old 03-09-2014, 09:21 PM   #7
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Be careful going to big with rotors though..... This is assuming u we're using stock rims...... If u go with 9 inch id look into a 17 inch rim like a svt rim
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Old 03-10-2014, 02:41 PM   #8
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Be careful going to big with rotors though..... This is assuming u we're using stock rims...... If u go with 9 inch id look into a 17 inch rim like a svt rim
Iv already got the rims and tires ready. They came off my 98 awhile back before I sold it. There the billet 17" rims with Nitto 555s. 245 in front and 275 in back. Do you know what size the sn95 stock rotors are?
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Old 03-10-2014, 02:54 PM   #9
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Well I took the first step into the 5 lug swap. I was just going to loosen everything until I got the new parts ready to throw on but jumped ahead of myself.
I took off the old calipers, rotors, and spindles.
Going to pick up a ball joint press probably tomorrow to finish the removal process and put some new ball joints in. Better to do it now that everything is off and not later lol
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Old 03-10-2014, 05:28 PM   #10
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Iv already got the rims and tires ready. They came off my 98 awhile back before I sold it. There the billet 17" rims with Nitto 555s. 245 in front and 275 in back. Do you know what size the sn95 stock rotors are?
94-98 Front GT/V6 rotors are 10.84" with 66mm caliper.
94+ Rear GT/V6 rotors are solid 10.5" with 38mm caliper.
94-98 Cobra Front 13" rotor with PBR 38x38mm caliper.
94+ Cobra Rear 11.65" vented rotor with the same 38mm caliper.
99+ Cobra Fronts 13" rotor with PBR 40x40mm caliper.

When you replace the ball joints you'll either need to get the SN 95 ball joints or a 0.330" tall spacer, 5/8" inside diameter , 1.5" outside diameter (or a stack of washers totaling 0.330").
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Old 03-10-2014, 09:17 PM   #11
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94-98 Front GT/V6 rotors are 10.84" with 66mm caliper. 94+ Rear GT/V6 rotors are solid 10.5" with 38mm caliper. 94-98 Cobra Front 13" rotor with PBR 38x38mm caliper. 94+ Cobra Rear 11.65" vented rotor with the same 38mm caliper. 99+ Cobra Fronts 13" rotor with PBR 40x40mm caliper. When you replace the ball joints you'll either need to get the SN 95 ball joints or a 0.330" tall spacer, 5/8" inside diameter , 1.5" outside diameter (or a stack of washers totaling 0.330").
Are the sn95 ball joints any better than the fox ball joints? I know the fox joints are taller but does it matter at all?
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Old 03-10-2014, 10:02 PM   #12
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I don't know if there are any better but if you're changing ball joints anyway why not get what works without adding either spacer or a stack or washers is my theory.
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Old 03-10-2014, 10:33 PM   #13
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I don't know if there are any better but if you're changing ball joints anyway why not get what works without adding either spacer or a stack or washers is my theory.
That is true lol i should be getting everything I need in the next week or so
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