10 inch drum brake fitment question.... February 22, 2014, 11:05:59 AM The Sport has a Turbo Coupe 8.8 with 9 inch drum brakes on it. Can the 1987/88 7.5 rear 10 inch drums work on this rear? I was thinking they would have to be spaced out a bit to fit right. Anybody know? Quote Selected
10 inch drum brake fitment question.... Reply #1 – February 22, 2014, 11:47:52 AM I don't think. The TC rear housing is the Mustang width with T-Bird width axles. I don't think the drums would have the right offset Quote Selected
10 inch drum brake fitment question.... Reply #2 – February 22, 2014, 01:42:07 PM Until I found the 8.8 with rear drums out of an XR7, I was running a TC rear with 10" drums (didn't want to be bothered switching to rear discs). The rear wheels did sit in a bit, but did not rub. Can't remember what axles I used though, it was several years ago. Quote Selected
10 inch drum brake fitment question.... Reply #3 – February 22, 2014, 03:24:36 PM I really don't want the wheels to sit inboard. Quote Selected
10 inch drum brake fitment question.... Reply #4 – February 22, 2014, 03:25:19 PM I just need to find a nice TC rear in good shape around here with all of the hardware. Quote Selected
10 inch drum brake fitment question.... Reply #5 – February 23, 2014, 12:51:14 AM The housing is the same length, stang or bird. the axles are different lengths as well as drums If you swap the hardware from 10" drums and you have tbird axles you should be set. honestly, I doubt its worth the trouble though. Quote Selected
10 inch drum brake fitment question.... Reply #6 – February 23, 2014, 09:01:39 AM I'm thinking the same thing Haystack. I believe the 8.8 is a wee bit narrower than the 7.5 housing although they do share the longer T-Bird axles.But I do think for now I'll just keep the nine inch brakes until I can locate a disc rear near me down here. Quote Selected
10 inch drum brake fitment question.... Reply #7 – February 23, 2014, 02:21:09 PM Quote from: Thunder Chicken;429270I don't think. The TC rear housing is the Mustang width with T-Bird width axles. I don't think the drums would have the right offsetI did the 10" drum swap to my TC rear...my wheels are positioned normally. Now, as long as you have some Sport 10" brake drum backing plates, I think you could do this with the TC axles. The TC axles are identical in length to the SN95 (5 lug) axles I used.In fact, the only difference between the 2 swaps would be the axle's lug count..But you MUST have the '83-'85 10" drum backing plates to work with the Tbird length axles. And of course then you'll need the 10" drums and the requisite brake hardware...and that's available at any parts store.You have the TC rear in now, right? (You can also use a Fox Stang 8.8....the housing itself is the same width. The difference in overall width comes from the (TC) axles, which you'll be using since you wish to stay 4 lug.The difference seems to be in the backing plates, however, my 5 lug Crown Vic drums are also deeper, so with my setup using the '87-'88 Sport backing plates, the deeper drums allowed for the difference. Apparently I need to go back and edit my swap thread with this info.The combo of axles, drums, and backing plates must be kept in mind, or you'll have an offset issue as Carm mentions.Ad I don't know if there is a 4 lug, 10" drum that is "deeper" like the Crown Vic drum that will enable the later 10" drum's backing plates to work with the 21.95" axles, such as the SN95, and the Tbird/Cugar axles. Quote Selected
10 inch drum brake fitment question.... Reply #8 – February 23, 2014, 03:41:39 PM Well, I ordered a new brake drum for the 9 inch brakes. The 10 inch brakes are at the yard on a V-6 car. I may get them. Not sure yet. May wait for a TC rear that is COMPLETE. Quote Selected
10 inch drum brake fitment question.... Reply #9 – February 23, 2014, 04:58:36 PM The ONLY reason i went with the drum setup was because I didn't want to mess with the master and prop valve work, as well as every rear disc brake rear I found, the calipers were seized, or were already missing parts. After I hear something about the new job in a couple of weeks, I'll either be selling ALL my Ford stuff, (if I don't get it) or once I get some things squared away, I'll be looking at getting rear discs for the Sport, and going back to that plan, but at the time I did the drums, it was a matter of money, ease, and quickly getting the car in a drivable state.Anywho, Vinnie, I've got the sway bar dragged out of storage, and will have it ready to go tomorrow...I just need a destination, and I can't quite remember your details lol. Quote Selected
10 inch drum brake fitment question.... Reply #10 – February 23, 2014, 05:45:47 PM I just put a '92 mustang rear end in my '88 Sport and when I put them in I swapped the backing plates and put my 10" drums on the Mustang housing. If you wanted to put the 10" drums I would think the TC housing you would need some Mustang length axles. And with that setup the rear wheels do sit noticeably inboard on the car. You would either need spacers or some high offset wheels to counter that. Quote Selected
10 inch drum brake fitment question.... Reply #11 – February 23, 2014, 05:46:37 PM Just be aware that the plumbing is different between the Mustang and TB rear ends. I had to use the brake lines from the Sport housing and mess with them until they fit the Mustang width one. Quote Selected
10 inch drum brake fitment question.... Reply #12 – February 23, 2014, 06:03:30 PM I really think I'm going to wit until I can get a complete TC rear. Or find a complete disc swap kit at the right price. Quote Selected
10 inch drum brake fitment question.... Reply #13 – February 23, 2014, 09:59:13 PM Quote from: OfficerJoseph;429366I just put a '92 mustang rear end in my '88 Sport and when I put them in I swapped the backing plates and put my 10" drums on the Mustang housing. If you wanted to put the 10" drums I would think the TC housing you would need some Mustang length axles. And with that setup the rear wheels do sit noticeably inboard on the car. You would either need spacers or some high offset wheels to counter that.No sir. The Stang 8.8 and the TC 8.8 HOUSINGS themselves are the same (not the axle to width). It's the axles that give the inch..inch and a half extra width to these cars compared to the Fox Mustang. The '87-93 Mustang axles, regardless of 7.5 or 8.8 are shorter. :) You can put TC axles in your housing right now (not counting the brake stuff you'd need) and your track width would be back to what it should be. In fact, if you find the proper brake parts, it's easily done. I did a swap/conversion a year ago, in which I swapped SN95 axles into a TC rear, with Sport backing plates, and 10" drums from a 1988 Crown Vic. 5 lug drums, stock rear track width, and keeping my 7.5 rear's brake line was the goal, and it worked.Now, if Vinnie wanted to go this route, it would be much the same, only he'd need an 8.8 rear from either a TC, or an '86-98 V8 Mustang, and ANY 4 lug Tbird/Cougar axles, as they were ALL the same length. He'd also need Sport backing plates, and the Sport brake drums to keep keep 4 lug, but have the big drum setup.There's a chart in .PDF, I don't know how to embed it here, but that's my source, and Chuck W here, and some others compiled some info, so I know it to be the most accurate info out there.Cliff's notes:'86-'98 8.8 housings are the same width @54.096"'88-'88 TC 8.8 is also 54.096"Again, this is the housing, NOT the axle to axle measurementNow for the axles:'86-93 Fox Stang axles (7.5 and 8.---29.18"'94-'98 Mustang axles (7.5 and 8.----29.97"and ALL Tbird/Cougar axles (7.5/8.--29.91"This doesn't count the Ranger/Aerostar axles, which I left out, as they really pertain to Fox Mustang track width, and not the Tbird/Cougar. At least, not the '86-'88 cars, as they seem to be able to fit a wider axle, and/or tire combo without protrusion.Believe me, I've studied the shiznit out of that chart...perhaps it's stickied in the axle tech section. OfficerJoseph, not that I'm cirtiquing your build or plans, but I'd rather have the proper length axles than spacers, plus, you can tailor in your planned brakes, or 4 vs. 5 lug at the same time..just food for thought. Make ya hungry? LOL :) Quote Selected
10 inch drum brake fitment question.... Reply #14 – February 23, 2014, 10:19:31 PM I understand most of what you said,When I did my swap I retained the Mustang axles and just bolted up the 10" backing plates which fit just fine.I would imagine then, that if you used Bird axles in the TC/Mustang rear that the drums would be sticking too far out and not mate up with the backing plates... Quote Selected
Topic: 10 inch drum brake fitment question.... (Read 4832 times)
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