8" Rear, How strong?
 

I have an 8 inch rear out of a '66 stang that i'm putting into my '65 (200ci6 - '89 5.0) How much hp will they stand up to?

Thanks
DSM

The figure I have seen is around 250hp. Of course I am sure this driver dependent as well.

If the motor isn't hopped up, you have nothign ot worry about. What killes them are violent launches and sticky tires. I know of several that live in 12 sec street and strip cars.
As for me, the next motor should make a touch over 550 horse on the spray, an 8 inch won't live through that <grin>


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Marcus
68 Mustang giggling 351C coming soon

I have a Currie built 8" in my '66 and it's worked well for several years. My 306 developes 300@5100 and 350@3750. This with a C-4. Auto trannys are easier on rear ends than standard trannies usually, if the stall is reasonable and with sreet tires. If the 5.0 is stock or mildly modded, you've got no worries if the 8"is in good shape.

Rev

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'66 Coupe, 306, windage
tray, TRW flat tops, 351W
heads,pocket ported, 268
CC hydraulic cam, R tip
R's, Edelbrock Performer,
600 CFM Holley vac. secs.,
Mallory Unilite, coil, fuel
pump, Tri-Y headers, 2 1/2 "
custom pipes, 3 chamber
Flows, stock C-4, 3.25
Currie built 8" rear,
March under drive pulleys,
13.97 e.t., 100.1 mph
1/4 mi.

Well, i've got an E-303, ported/polished 289 heads, full roller rockers, but a stock intake. I doubt i'll be doing many drag launches, but do you guys think it'll hold up? I also won't be using slicks either.
DSM

5-speed or AOD? Either way, it should be O.K.

Rev

You should fine, with an auto, it will absorb most of the shock that would kill the rear end, with a stick and any serious power, you will blow away tires. With out drag radials or slick, I wouldn't even sweat it. even with thme, I wouldn't torry too much...

Marcus

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Marcus
68 Mustang giggling 351C coming soon

I have to agree....unless you bolt on slicks and drop the hammer on it, the good ol 8" will hold up fine. I've had several that have taken a great deal of abuse on the street and never had a failure. You'll lose traction before you can put a hurt on it.

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66 GT Fastback 5.0, 5-speed, cable clutch, JBA's, 3.40 gears, EFI coming soon?

I've got an 8" un my 67 coupe I've ran 13.02 at 104.5 with a set of et streets on mine. On a website called http://fordmuscle.com
they have a 67 coupe that was running 12.20's with a 5 speed,slicks, and 5000rpm launches and theirs finally broke an axle. They replaced the broken axle and have ran an 11.9? something with it.

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91LX bbk shorties,bbk off-road pipe and
67 Coupe, 302, with TFS heads,13.21@ 104 on street tires