Re: Ordering a Ford 9 inch
[Re: pittsburghracer]
#2774328
05/13/20 07:51 PM
05/13/20 07:51 PM
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Joined: Mar 2006
Posts: 1,229 In The Hills
jughed
pro stock
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pro stock
Joined: Mar 2006
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In The Hills
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Just remember a cheaply built 9 inch is no better than an 8 3/4. Exactly. And a well-built 9" center section that will handle a lot of horsepower could cost more than a Dana. Trying not to hijack the thread, but years ago I bought a complete Dana from Strange with a Detroit locker (which I really like on the street) but I made the mistake of not ordering 5/8 studs, and it has Mopar style ends, which limit the brake options. When i ordered that Dana the motor in the car had roughly 600 hp. With a touch under 900 hp, I'm going to order a complete new Dana with spool and 5/8 studs. The car never sees wet weather. Looking for suggestions on which ends to go with, and a good disc brake kit w. emergency brakes.
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Re: Ordering a Ford 9 inch
[Re: jughed]
#2774333
05/13/20 08:12 PM
05/13/20 08:12 PM
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Joined: Dec 2013
Posts: 4,700 Wichita
GY3
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master
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Wichita
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I've seen plenty of 9" Fords $hit the bed on the starting line at dragstrip. In surprisingly light cars ,too!
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.
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Re: Ordering a Ford 9 inch
[Re: jughed]
#2774334
05/13/20 08:23 PM
05/13/20 08:23 PM
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Joined: Dec 2004
Posts: 10,556 Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
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Posts: 10,556
Rittman Ohio
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Did anybody else have the feeling that this would turn into a Dana-VS-9"-VS-8 3/4 rear end argument Gus Might as well go all the way with a Rockwell
Last edited by fourgearsavoy; 05/13/20 08:24 PM.
64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60
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Re: Ordering a Ford 9 inch
[Re: pittsburghracer]
#2774335
05/13/20 08:23 PM
05/13/20 08:23 PM
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Joined: Jan 2007
Posts: 1,169 MI
68shifter
super stock
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super stock
Joined: Jan 2007
Posts: 1,169
MI
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Just remember a cheaply built 9 inch is no better than an 8 3/4. As long as the pinion angles right it’ll out 60’ an 8-3/4 any day.
Last edited by 68shifter; 05/13/20 08:24 PM.
68' Barracuda (4 speed)
64' Savoy (4 speed)
65' Satellite (girl tranny)
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Re: Ordering a Ford 9 inch
[Re: jughed]
#2774342
05/13/20 08:44 PM
05/13/20 08:44 PM
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Joined: Jan 2003
Posts: 31,071 Oregon
AndyF
OP
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OP
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Oregon
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Just remember a cheaply built 9 inch is no better than an 8 3/4. Exactly. And a well-built 9" center section that will handle a lot of horsepower could cost more than a Dana. Trying not to hijack the thread, but years ago I bought a complete Dana from Strange with a Detroit locker (which I really like on the street) but I made the mistake of not ordering 5/8 studs, and it has Mopar style ends, which limit the brake options. When i ordered that Dana the motor in the car had roughly 600 hp. With a touch under 900 hp, I'm going to order a complete new Dana with spool and 5/8 studs. The car never sees wet weather. Looking for suggestions on which ends to go with, and a good disc brake kit w. emergency brakes. Talk to Doctor Diff. He can set you up with what you want. He is a Strange dealer so he can order the config that you want and add the correct disc brake kit and have it drop shipped to you. If you have 15 inch wheels in back then you'll probably be limited to an 11 inch rotor but it depends on how much backspacing there is on the wheel.
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Re: Ordering a Ford 9 inch
[Re: 68shifter]
#2774346
05/13/20 08:54 PM
05/13/20 08:54 PM
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Joined: Dec 2005
Posts: 11,668 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,668
Fulton County, PA
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Just remember a cheaply built 9 inch is no better than an 8 3/4. As long as the pinion angles right it’ll out 60’ an 8-3/4 any day. And here we go.
If the results don't match the theory, change the theory.
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Re: Ordering a Ford 9 inch
[Re: GY3]
#2774347
05/13/20 08:58 PM
05/13/20 08:58 PM
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Joined: Dec 2005
Posts: 11,668 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,668
Fulton County, PA
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I've seen plenty of 9" Fords $hit the bed on the starting line at dragstrip. In surprisingly light cars ,too! Yeah. Even one of those can be screwed up by some hilljack who thinks he can spend $20, slap it together and send it. Exactly. And a well-built 9" center section that will handle a lot of horsepower could cost more than a Dana. And?
Last edited by CMcAllister; 05/13/20 09:04 PM.
If the results don't match the theory, change the theory.
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Re: Ordering a Ford 9 inch
[Re: AndyF]
#2774350
05/13/20 09:04 PM
05/13/20 09:04 PM
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Joined: Aug 2011
Posts: 2,871 Pattison Texas
CSK
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master
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Pattison Texas
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The S trac in my S60 works great !!!
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
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Re: Ordering a Ford 9 inch
[Re: CSK]
#2774357
05/13/20 10:05 PM
05/13/20 10:05 PM
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Joined: Aug 2003
Posts: 43,285 Bend,OR USA
Cab_Burge
I Win
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I Win
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Posts: 43,285
Bend,OR USA
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The S trac in my S60 works great !!! How much do the S Tracs weigh? A lot of people don't know how much more power a Ford type 9 inch rear end takes to make it rotate compared to any other popular rear end made in American productions cars Every race ready Ford type rear end that I've seen or heard from racers who priced them against a Dana 60 cost any where from $500 to $1500 depending on which race parts where used on the 9 inch rear end, the better stronger parts cost more money
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Ordering a Ford 9 inch
[Re: Cab_Burge]
#2774367
05/13/20 11:58 PM
05/13/20 11:58 PM
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Joined: Jan 2003
Posts: 7,498 Minnesota
Hemi_Joel
master
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master
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Posts: 7,498
Minnesota
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One of the common failure modes of the 9' is when they blow the pinion retainer out the front. So I ordered the housing from Moser that has10 bolts instead of 5 holding the pinion in. It's probably overkill, but for an extra $100 or so, why not?
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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Re: Ordering a Ford 9 inch
[Re: AndyF]
#2774415
05/14/20 08:14 AM
05/14/20 08:14 AM
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Joined: Jan 2008
Posts: 1,213 Minn
SportF
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pro stock
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Next time at the track, go look at the rears in the 3-4 second (1/8 mile) cars. Count the number of Dana rears you see there. Look at the rears these guys are running, they are all the same type.
BTW, you won't need a pencil and paper to count the number. You actually won't need anything.
On the power rob, I really wish there was a true scientific test on a 9 inch style to see the loss. That truly would be interesting, but I doubt it would change anybody's mind anyway.
Years ago I got some great advice at the race track, "if everybody is doing it, its probably a pretty good idea"
Have a great day, I hope we get to race this year.
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Re: Ordering a Ford 9 inch
[Re: SportF]
#2774484
05/14/20 12:07 PM
05/14/20 12:07 PM
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Joined: Oct 2003
Posts: 11,685 W. Kentucky
justinp61
I Live Here
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I Live Here
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W. Kentucky
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Next time at the track, go look at the rears in the 3-4 second (1/8 mile) cars. Count the number of Dana rears you see there. Look at the rears these guys are running, they are all the same type.
BTW, you won't need a pencil and paper to count the number. You actually won't need anything.
On the power rob, I really wish there was a true scientific test on a 9 inch style to see the loss. That truly would be interesting, but I doubt it would change anybody's mind anyway.
Years ago I got some great advice at the race track, "if everybody is doing it, its probably a pretty good idea"
Have a great day, I hope we get to race this year.
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Re: Ordering a Ford 9 inch
[Re: SportF]
#2774494
05/14/20 12:42 PM
05/14/20 12:42 PM
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Joined: Mar 2006
Posts: 1,229 In The Hills
jughed
pro stock
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pro stock
Joined: Mar 2006
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In The Hills
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Next time at the track, go look at the rears in the 3-4 second (1/8 mile) cars. Count the number of Dana rears you see there. Look at the rears these guys are running, they are all the same type....
3-4 sec 1/8 mile cars?? ...sheesh...Apples and oranges...Those cars use center sections that ALONE may cost double what an entire Dana would cost. They want the 9" advantage of quickly replacing broken parts, or to dial in their cars. I can't blame them, they ARE going to break rearend parts. Totally different than a mild street car application. And I totally understand Andy's decision to run a 9". Far more parts and options are available to him.
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Re: Ordering a Ford 9 inch
[Re: jughed]
#2774499
05/14/20 01:11 PM
05/14/20 01:11 PM
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Joined: Jan 2003
Posts: 7,498 Minnesota
Hemi_Joel
master
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master
Joined: Jan 2003
Posts: 7,498
Minnesota
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Regarding brand loyaly, if it is all aftermarket, who cares? My 9" doesen't have one single part that was ever in a ford factory.
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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Re: Ordering a Ford 9 inch
[Re: 68shifter]
#2774510
05/14/20 01:28 PM
05/14/20 01:28 PM
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Joined: Nov 2007
Posts: 21,844 Kirkland, Washington
Pacnorthcuda
Too Many Posts
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Too Many Posts
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Kirkland, Washington
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Just remember a cheaply built 9 inch is no better than an 8 3/4. As long as the pinion angles right it’ll out 60’ an 8-3/4 any day. And why would that be? It’s got frictional loss as a disadvantage...
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Re: Ordering a Ford 9 inch
[Re: Pacnorthcuda]
#2774517
05/14/20 01:53 PM
05/14/20 01:53 PM
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Joined: Dec 2005
Posts: 11,668 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,668
Fulton County, PA
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You want the lowest horsepower eater? Get a 12 bolt. Better yet, get the 12 bolt center to go into a 9" housing. Danas and 9"s aren't that far apart.
Last edited by CMcAllister; 05/14/20 01:55 PM.
If the results don't match the theory, change the theory.
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