Looked at my Bird sitting in the driveway yesterday and seemed to be sitting a bit high in the left rear corner. Figured Aww flat right front, looked around the side of the car and didn’t appear so (although it was starting to get dark and the tire was up against a bush) figured it was just the lay of the driveway (lot’s of tree roots messing with the flatness on that side of the drive) Well came out to go to work this morning and sure enough, flat as a board.
If you recall from my introduction my tires are shot so it’s not worth patching (if I was a tire guy I wouldn’t, there THAT bad) so is time to get tires for the bullits and convert to 5 lugs. Luckily I just ordered my 5 Lug rotors from North Racecars (http://"http://www.northracecars.com/catalog/brakes/brakes.htm") last week and I’m expecting them any day.
My rear is about ready to go in. I still need to purchase the Rotors and Tires for it also, So I suppose I best be getting to it. :beatyoass: Car’s going to be looking a bit funky with 18” Bullits on the front and 14” $4.00 hubcaps on the back if I don't.
Time to get started
What's the differance between their front rotors and stock parts store mark vii rotors???
The Mark VII Rotors off the 84 I had (still have rotors, spindles, Calipers, and struts) are Larger Diameter than my 88 T-Birds.
That was the original plan was to use those (one of the reasons I bought the Mark) but I pulled them a measured the difference.
Going from memory (not REAL reliable considering my age and my past) the bird has 10” rotors and the Mark has 11.65. The calipers from my Bird are not going to fit over the Mark Rotors. I looked at changing the Calipers and they will not bolt to my Spindles (bolt pattern is wider by approximately and inch) and I looked at changing Spindles and all (that’s why I pulled them before I sped the Mark) and NOW I have read I will have lower Ball Joint issues. I believe there is a fix (special ball joint?) but decided not to go that route. I considered turning the rotors down (I have access to a lathe) but balance issues concern me with that.
I’m in the middle of trying to build a house right now and looking for an easy fast direct replacement. And I believe these rotors are it.
87 up mustang spindles or 87 88 TC spindles.
fit your car with no mods and give you 11" brakes... so slide some late 80's mark rotors on it and call it a day.
So, if I'm following you correctly
87 Mustang Spindles (move my 88 Bird Calipers out)
Late 80's Mark Roters (supply 5 lug and 11")
and use my Calipers.
So do the Mark Roters change in the 80's or are the ones I have the right ones? (84 is early Mark but seems odd they would make that suttle of a change)
Use the mustang calipers or 87 88 tc calipers
On my 88 in the sig I have 88 TC spindles on my stock ball joints and stock tie rod ends.. You could put Mark vii rotors on those spindles and call it a day. But word has it the center caps wont fit with those type spindles.
87-93 mustang spindles and 87-88 TC spindles work. You must use calipers from said vehicles, and you can use your Mark VII rotors. Thats the setup i run on the front of my TC.
If you need spindles, i have a pair.
Remember, too, that it's gotta be a 5.0 Mustang. 4-cyl models have the same 10" brakes that you've got now.
Unless of course that 4 cylinder is an SVO... in which case. Grab the whole car :D . Or make sure you dismantle it and post pics all over the Mustang forums specifically saying it's for a T-bird :flip: .
HAHAHAHAHA:stupid:
of course after send me the car!
Bah!
And the rotors just showed up today and there 11"
I don't belive there going to fit my car anyway, grrrr
So I guess my question is this. Will the Mark calipers bolt on an work with the mark rotors and mustang V8 spindle. Or do you have to use the Mustang calipers. The mark calipers are huge when compared to the mustang unit. The bolt holes seem to line up in a bench test side by side. It is nice to work in a parts store sometimes. The only noticeable differnce is to me is the fact the the stang unit has a smaller piston than the mark unit. so does anyone know. Are the mustang V8 4 lug rotors 11"? If so big brakes still 4 lug seems eazy. Just need some 4 lug 10" drums and I'd be set. I still need another axel to do the 5 lug drum brake rear swap. Also the mark rotors get more expensive the newer you get. They have the ABS sensor ring on the back side. Try and get older ones like 83-84 before they had that option.
I dont know from first hand knowledge yet but according to Cool Cats:
Ok, so here is the situation.Looked for a fast easy way out (first mistake) due to my bird having a broken foot (flat, on a worn out tire) and ordered the 5 lug rotors from Richard Oben of North Racecars based on this… That I found on CoolCat’s site and since I know Richard from the Cobra site. They showed up and there not 10”. Won’t fit the front of my stock bird. I have an E-mail in to Richard explaining the situation asking if in fact he does even offer 10” 5-Lug rotors in which case I just messed up my order (HIGHLY Possible!) SO, I have 2 sets of 11” 5 lug rotors (new set from Richard and an old set from the 84 Mark VII that have some grooves in them)I have Calipers and spindles and struts from the 84 Mark.I have a lead on Spindles, Rotors, and Calipers from a 91 Mustang GT right here local for $150And I have a lead on some spindles that would need shipped from MD. And my Bird is STILL in the drive with a flat! Tomorrow is my day off, the plan is to take a day off from working on the house and fix all this.
Once you upgrade to the 11" brakes you'll be glad you didn't get those 10" rotors anyway.
Got a responce from Richard and they don't have 10" 5 lug disk avalable. Forwarded that info to Eric.
Got a responce back from the local guy parting the 91 and he's pulling the spindles off today so I should be able to install them tomarrow.
Now, Calipers .. I will be getting the Stang Calipers BUT Coolcats says
"Calipers - The 1987-92 Lincoln Mark VII had a very large 73mm piston, much better than the stock 60mm piston used in the Mustang 5.0 cars."
What size would my 84 Mark Calipers be? Same as the Mustang 60mm?
The 73mm calipers really arnt worth much. They throw the bias off.
Remember to get the flex hoses off the Mustang, too. And you'll need an adapter for the left side because your T-Bird hard line won't go into the Mustang flex hose. Also, dunno if you're aware, but 11" spindles are about 1/8" narrower than the 10" ones where the strut bolts to them. You'll need spacers or washers if you plan on reusing your struts.
LOL
you guys are killing me!!! :shoothead
I'm thinking Chuck has something to do with this, getting even with me for the Axel headache I gave him!!
Will the Stang Struts work?
(This thread has turned into something that should be in the "Suspension/Steering" forum)
So I went from 10" front brakes and Drum rear
to
1991 Mustang 11" disk front and 1984 Mark VII Rear
I'm not done yet am I?
Per ThunderChickens thread
And God said "Let there be brakes!" (http://"http://www.foxtbirdcougarforums.com/showthread.php?t=13497") - I'm going to need a new Prop valve (adjustable aftermarket or the Mark VII would work IF I saved it) correct?
Also based on other things I have read...
- And this I was already suspicious of, a New Master Cylinder mine will work but is small and will give me sluggish feeling brakes. The Cobra or the Mark master will help this.
Am I on track here guys?
Yes, you'll need a prop valve (gut your current one and use an adjustable - I used a TC one, but that's only because I had a TC one). You'll also need a master cylinder. I dunno about an '84 Mark unit - it may work but you'll have to change the fittings on the lines going into it. Your T-Bird has metric fittings, the Mark would likely have SAE. If the Mark has ABS the M/C won't work at all.
I can't vouch for others, but after thorough bleeding I had beyond "sluggish" brakes with the stock M/C - I had no pedal. I'm sure the car would've stopped eventually (never did drive it) but the pedal went to the floor. I knew the pedal would be low but that was crazy (I only bled the brakes at all in case I'd have to move the car out of the garage for anything)
Current state of affairs: [LIST=1]
- New KYB Gas struts for a 91 Mustang w/new boots (Installed)
- 91 Mustang Spindles and Calipers (Installed)
- Mustang flex hoses, needed and adapter for BOTH sides not just the left. (Installed)
- 5 lug Rotors from Richard (Lincoln) with Semi Metallic Pads (installed)
- Front edge of the Rotor hub turned to a 45* angle to clear the Bullits.
- Bullits with 245/70/17 (installed)
I have one other “issue” I would like to address on the front.Where the brake line bracket that mount’s the brake line to the frame/body. The brake lines from the Mustang are larger than the T-birds and so they won’t go in where I can replace the clip to lock the lines down. It’s threaded through right now but not locked down. I shouldn’t drive it this way. What did the rest of you do here?
Turbo Coupe soft lines must be different - I simply used the existing brackets. I guess if Mustang hoses are different you'll need the brackets from a Mustang. Ford really didn't help us out any when it comes to upgrading these things, did they?
That is a really tall tire! Typo?
As for the lines... I pretty much just left mine loose. I suppose if you wanted them locked in place you could get the Mustang brackets/clips.
I should be able to get the Stang Brackets. The Master also.
Will the stang Sway Bar work? My bar is over an inch but the one on that stang was larger.. looked to be 1-1/4 or so. did they even make sway bars that big?
Opps yes Typo...245/40/17
No Thunder, they didn't help at all.
Having Master Cylinder problems now. Having trouble locating a master that will work. I want the easiest one that will do the job.
Sounds like a Cobra master is what I want but I'll be ed if I or my parts guy can find one listed for a cobra.... Mustang and design looks right but thats for Drum rear... I have Disk all the way around and the rear have Lincoln calipers.
Anybody have a part number or something?
At the bottom of this page is the only one I have found... yet it calls 15/16 bore, I thought I read someplace that we wanted over 1" for rear Disk.
ThunderChicken, I know you did something like this but couldn't tell by your thread what you ended up with. What Master are you using and do you have the Lincoln Calipers on the rear?