Re: Ordering a Ford 9 inch
[Re: AndyF]
#2774093
05/13/20 08:26 AM
05/13/20 08:26 AM
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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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I wouldn’t run anything less than 35spline axles. Torino ends are perfect, you’ll have tons of brake options.
You’ll need at least the 3.25” bore case and the 28spl pinion is fine. The nodular cases are strong, but heavy. I build a lot of the thru-bolt aluminum cases as the cost difference is negligible. With a 9” as well you can buy different length yokes so you might be able to keep your driveshaft with some playing.
Strange makes 2 different aluminum cases that are non thru bolt. One is a lightweight street type case that’s like $325. Those won’t hold up to drag racing. The other is the same they put in the Copo’s. Nice piece but obviously more pricey.
Something like this is 375.
68' Barracuda (4 speed)
64' Savoy (4 speed)
65' Satellite (girl tranny)
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Re: Ordering a Ford 9 inch
[Re: 68shifter]
#2774125
05/13/20 10:17 AM
05/13/20 10:17 AM
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Joined: Jan 2003
Posts: 965 Odessa, Fl
blowndart
super stock
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super stock
Joined: Jan 2003
Posts: 965
Odessa, Fl
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I wouldn’t run anything less than 35spline axles. Torino ends are perfect, you’ll have tons of brake options.
You’ll need at least the 3.25” bore case and the 28spl pinion is fine. The nodular cases are strong, but heavy. I build a lot of the thru-bolt aluminum cases as the cost difference is negligible. With a 9” as well you can buy different length yokes so you might be able to keep your driveshaft with some playing.
Strange makes 2 different aluminum cases that are non thru bolt. One is a lightweight street type case that’s like $325. Those won’t hold up to drag racing. The other is the same they put in the Copo’s. Nice piece but obviously more pricey.
Something like this is 375. I had a Strange Pro Iron case and it was very heavy. I switched to the Yukon bolt-through aluminum case and it makes gears changes much easier. I have two setups with different gears. I also use a Detroit locker. I had to remove a little material in the Yukon case with a die grinder to make it fit though.
Last edited by blowndart; 05/13/20 10:18 AM.
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Re: Ordering a Ford 9 inch
[Re: 68shifter]
#2774163
05/13/20 12:05 PM
05/13/20 12:05 PM
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Joined: Jan 2003
Posts: 31,071 Oregon
AndyF
OP
I Win
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OP
I Win
Joined: Jan 2003
Posts: 31,071
Oregon
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I wouldn’t run anything less than 35spline axles. Torino ends are perfect, you’ll have tons of brake options.
You’ll need at least the 3.25” bore case and the 28spl pinion is fine. The nodular cases are strong, but heavy. I build a lot of the thru-bolt aluminum cases as the cost difference is negligible. With a 9” as well you can buy different length yokes so you might be able to keep your driveshaft with some playing.
Strange makes 2 different aluminum cases that are non thru bolt. One is a lightweight street type case that’s like $325. Those won’t hold up to drag racing. The other is the same they put in the Copo’s. Nice piece but obviously more pricey.
Something like this is 375. Thanks, that is exactly where I was going. From what I've seen so far the 35 spline axles, Torino ends, 28 spline pinion all seem to be good choices. I'll do more research on the bolt thru cases and front supports. I have a Strange 8 magnet setup on my Dana 60 so I need a pinion yoke that will accept that. I'll use a 1350 u joint. I have a Detroit Locker now and I'd rather switch to something else. I have a S Trac in my other car and I like it so I think I'll put an S Trac in the 9 inch as well.
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Re: Ordering a Ford 9 inch
[Re: AndyF]
#2774167
05/13/20 12:12 PM
05/13/20 12:12 PM
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Joined: Jan 2003
Posts: 8,033 Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,033
Tulsa OK
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Why are you wanting to move away from the Dana?
68 Barracuda Formula S 340
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Re: Ordering a Ford 9 inch
[Re: AndyF]
#2774174
05/13/20 12:30 PM
05/13/20 12:30 PM
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Joined: Jan 2003
Posts: 965 Odessa, Fl
blowndart
super stock
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super stock
Joined: Jan 2003
Posts: 965
Odessa, Fl
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I wouldn’t run anything less than 35spline axles. Torino ends are perfect, you’ll have tons of brake options.
You’ll need at least the 3.25” bore case and the 28spl pinion is fine. The nodular cases are strong, but heavy. I build a lot of the thru-bolt aluminum cases as the cost difference is negligible. With a 9” as well you can buy different length yokes so you might be able to keep your driveshaft with some playing.
Strange makes 2 different aluminum cases that are non thru bolt. One is a lightweight street type case that’s like $325. Those won’t hold up to drag racing. The other is the same they put in the Copo’s. Nice piece but obviously more pricey.
Something like this is 375. I have a Detroit Locker now and I'd rather switch to something else. I have a S Trac in my other car and I like it so I think I'll put an S Trac in the 9 inch as well. I've considered trying something different as well. Lockers have their drawbacks. I'm making more than 600 HP and just haven't found something that I trust to hold up, yet.
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Re: Ordering a Ford 9 inch
[Re: AndyF]
#2774202
05/13/20 01:12 PM
05/13/20 01:12 PM
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Joined: Dec 2004
Posts: 10,556 Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
Joined: Dec 2004
Posts: 10,556
Rittman Ohio
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I have been building a parts list to go back to a 9" too. That Yukon through bolt case looks plenty strong and the 28 spline input is plenty strong on the pinion. My old 9 had 33 spline Moser axles and spool still making passes in a 9 second Camaro with a factory double rib iron carrier. I looked at the S-Trac for my future build but the $1000 price tag doesn't fit my budget but Cass could probably get you a better deal on that unit. I like the round back housing just because it looks like an 8 3/4. I ran the Italian made Summit brand 4.56 gears in mine and they are still going strong many hundreds of passes later. You should be able to find the yoke you need easily and the pinion support gives you plenty of options for mounting it to the housing. Good luck with you new project I know you will like it Gus
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: Bad340fish]
#2774203
05/13/20 01:16 PM
05/13/20 01:16 PM
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Joined: Jan 2003
Posts: 31,071 Oregon
AndyF
OP
I Win
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OP
I Win
Joined: Jan 2003
Posts: 31,071
Oregon
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Why are you wanting to move away from the Dana? I'm planning on putting Weld S71 wheels on the rear to match the fronts. The offsets will be different so the axle lengths need to be changed. The gear ratio in the Dana is a 4.56 but I only need 4.10 for the way I'm using the car and I'm thinking of changing brakes as well as the differential. Rather than pull everything off the Dana 60 and try to sell a bunch of used parts I think it will be easier to just build a new rearend that drops into the car and then sell the S60 as a complete unit to someone who is building a drag race A body. I could also have a new S60 built with all the parts I want but I think the Ford housing will give me a little more room under the car. It looks like the Ford costs a little more money than the S60 but not a huge premium if I stay with bracket racer parts rather than pro parts.
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Re: Ordering a Ford 9 inch
[Re: blowndart]
#2774226
05/13/20 02:19 PM
05/13/20 02:19 PM
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Joined: Jan 2003
Posts: 8,033 Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,033
Tulsa OK
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I've considered trying something different as well. Lockers have their drawbacks. I'm making more than 600 HP and just haven't found something that I trust to hold up, yet.
While they have some drawbacks spools are predictable and reliable. About the only time I don't like the spool in my street car is in parking lots. Some people on here act like a spool will kill you in the rain, its not bad, and its predictable. A locker is more likely to come around on you when it transitions from ratcheting to locked. My Jeep has had a locker in it for 15 or so years and it wants to kill you in the rain, you just have to know when its going to make its move lol.
68 Barracuda Formula S 340
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Re: Ordering a Ford 9 inch
[Re: AndyF]
#2774236
05/13/20 02:49 PM
05/13/20 02:49 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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Strange stuff is first class. The iron pro series or S series should be fine for what you are doing. They don't want the race axles used on the street. That doesn't mean guys don't do it. I would just go straight to 35 spline alloy stuff in a car that would be primarily be used on the street. 35 spline (funny car) pinions are typically used in big power race applications and are pro gear only. 28 spline is fine for most stuff below Top Sportsman level performance.
Anything you can get from Strange in a package vs. individual pieces saves a bunch of money.
If the results don't match the theory, change the theory.
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Re: Ordering a Ford 9 inch
[Re: CMcAllister]
#2774245
05/13/20 03:21 PM
05/13/20 03:21 PM
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Joined: Jan 2012
Posts: 2,677 Stuttgart, Arkansas
rickseeman
master
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master
Joined: Jan 2012
Posts: 2,677
Stuttgart, Arkansas
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I have some MW stuff that came out of my Drag Pak. But it's a spool. (You probably don't want that.) And it would probably not have the right length axles or we could make a good deal.
2011 Drag Pak Challenger
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Re: Ordering a Ford 9 inch
[Re: Bad340fish]
#2774273
05/13/20 05:25 PM
05/13/20 05:25 PM
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Joined: Jan 2003
Posts: 11,725 Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,725
Portage,michigan
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I've considered trying something different as well. Lockers have their drawbacks. I'm making more than 600 HP and just haven't found something that I trust to hold up, yet.
While they have some drawbacks spools are predictable and reliable. About the only time I don't like the spool in my street car is in parking lots. Some people on here act like a spool will kill you in the rain, its not bad, and its predictable. A locker is more likely to come around on you when it transitions from ratcheting to locked. My Jeep has had a locker in it for 15 or so years and it wants to kill you in the rain, you just have to know when its going to make its move lol. Had about every type rear posi you can have. The only one i hated was a Detroit Locker.
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, low 10.30’s 1/4 1.41 best 60 foot 6.56 at 104.17
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Re: Ordering a Ford 9 inch
[Re: justinp61]
#2774284
05/13/20 06:00 PM
05/13/20 06:00 PM
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Joined: Feb 2005
Posts: 20,197 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,197
PA.
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Just remember a cheaply built 9 inch is no better than an 8 3/4.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: Ordering a Ford 9 inch
[Re: pittsburghracer]
#2774297
05/13/20 06:31 PM
05/13/20 06:31 PM
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Joined: Aug 2003
Posts: 43,285 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,285
Bend,OR USA
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Just remember a cheaply built 9 inch is no better than an 8 3/4. There is no way I would spend money on a nine inch rear end, no matter who made the parts. I would spend money on a 10 inch rear end with a drop out third member as long as it had over 1000 HP with a high traction chassis I remember when the Chrisman family was developing the Ford nine inch rear end for drag racing, they used the Dunn and Reath funny car as their test mule. Joe Reath told me that they had over $2300.00 in it back in 1972 or 1973, he also said they would take it out of the car and put the Dana 60 back in it when they where racing the car in Salt Lake City, UT I didn't think to ask why they would change it for racing it up there
Last edited by Cab_Burge; 05/13/20 06:32 PM.
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]
#2774300
05/13/20 06:35 PM
05/13/20 06:35 PM
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Joined: Feb 2005
Posts: 20,197 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,197
PA.
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Just remember a cheaply built 9 inch is no better than an 8 3/4. There is no way I would spend money on a nine inch rear end, no matter who made the parts. I would spend money on a 10 inch rear end with a drop out third member as long as it had over 1000 HP with a high traction chassis I remember when the Chrisman family was developing the Ford nine inch rear end for drag racing, they used the Dunn and Reath funny car as their test mule. Joe Reath told me that they had over $2300.00 in it back in 1972 or 1973, he also said they would take it out of the car and put the Dana 60 back in it when they where racing the car in Salt Lake City, UT I didn't think to ask why they would change it for racing it up there Lmao. Ohhhhh ok 👍
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: Ordering a Ford 9 inch
[Re: pittsburghracer]
#2774313
05/13/20 07:03 PM
05/13/20 07:03 PM
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Joined: Sep 2008
Posts: 656 Florida
CJD AUTOMOTIVE
mopar
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mopar
Joined: Sep 2008
Posts: 656
Florida
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Is this a drag race or street/strip car? I use Speedway Engineering housings, but thats more suited to circle/road race. If your going custom 9", I'd go full floater. Multiple advantages such as the axle shaft doesn't carry any vehicle weight, brake pad knock back is eliminated, etc... 31 spline would be more than enough for your power level, but I'd opt for 35 to have some cushion, albeit at a weight penalty over the 31. As far as center sections, I use the iron Strange pro case (big bore for 35 spline). Aluminum cases move around a lot and eat up gears on road race/circle track applications. Same for the pinion support, iron Daytona. Differential wise, the Strange unit is almost identical to the Wavetrac, except the Wavetrac has a lifetime warranty. I chose the Wavetrac, in part due to warranty.
Craig Scholl CJD Automotive, LLC Jacksonville, FL www.CJDAUTOMOTIVE.com904-400-1802 "I own a Mopar. I already know it won't be in stock, won't ship tomorrow, and won't fit without modification"
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