Currie 9" housing and torque arm problems
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From: Niles, IL
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Currie 9" housing and torque arm problems
Would have been nice to know that the Strange S-Series iron 9" center section will not fit on a Currie 82-02 housing with torque arm mount. I just randomly mocked it up to clean some stuff off my bench when I noticed this:



The S-Series cases ribs are directly interfering with the torque arm mount. It's the rib between 2 and 3 o'clock:

On the the Pro Iron case I don't think I'll have that issue. I just wish I'd known about this before I bought the center.....According to Currie, they do not know of any center section that does not require clearancing. DAMN! I'm gonna stop by Strange today and mock up a pro iron and see what it looks like.



The S-Series cases ribs are directly interfering with the torque arm mount. It's the rib between 2 and 3 o'clock:

On the the Pro Iron case I don't think I'll have that issue. I just wish I'd known about this before I bought the center.....According to Currie, they do not know of any center section that does not require clearancing. DAMN! I'm gonna stop by Strange today and mock up a pro iron and see what it looks like.
Last edited by robguitargod1; Sep 25, 2011 at 06:57 PM.
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From: Northern CA.
Car: '82 Z28
Engine: 350
Transmission: TH400 4,000 stall
Axle/Gears: Currie 9", 4.56 gears
Re: Currie 9" housing and Strange center problems
Didn't fit with my factory center section either. I just did a little grinding on the mount and all is good in the world. Looks like you'd have to do a bit too much to make it fit :/
Thread Starter
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From: Niles, IL
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Re: Currie 9" housing and Strange center problems
Joined: Aug 1999
Posts: 858
Likes: 6
From: Elkton MD, USA
Car: 1985 Camaro Z28, VIN F
Engine: 427 sbc, HSR
Transmission: T-56, self rebuilt 700+ hp
Axle/Gears: Moser 12bolt, 3.42 trutrac
Re: Currie 9" housing and Strange center problems
Back in the day (2002), I had clearanced the mount around the stud, and the rib around the mount.. Didn't want to take too much off of either.. YMMV
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: Currie 9" housing and Strange center problems
This is why you can't mix and match different manufacturers.
Thread Starter
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From: Niles, IL
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Re: Currie 9" housing and Strange center problems
Well I clearanced the center today making sure to not leave and sharp points or angles, then the torque arm won't mount with the housing bolted in. HAAAAAAAAAAAAAAAAAAAAAAAAAAA
I'm very familiar the hot-rodding way of making things fit when they weren't supposed to, I'd just like something about the swap to go well....Pics to follow. Gotta catch the fight now.

I'm very familiar the hot-rodding way of making things fit when they weren't supposed to, I'd just like something about the swap to go well....Pics to follow. Gotta catch the fight now.
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Joined: Jan 2002
Posts: 13,622
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: Currie 9" housing and Strange center problems
why did you go with currie when moser is just about as cheap and has a 100% bolt in housing and torque arm mount?
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Supreme Member
iTrader: (1)
Joined: Apr 2000
Posts: 5,321
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From: Northern CA.
Car: '82 Z28
Engine: 350
Transmission: TH400 4,000 stall
Axle/Gears: Currie 9", 4.56 gears
Re: Currie 9" housing and Strange center problems
The torque arm will mount with the housing in, done it a few times.
xpndbl3, I personally went with Currie because the housing doesn't look like it had mounts that were made from cut offs out of the scrap bin. Currie has factory looking mounts. Yeah there were a few small road blocks but you should really expect that with aftermarket stuff. "Direct bolt-in" is rarely the case for a lot of things.
xpndbl3, I personally went with Currie because the housing doesn't look like it had mounts that were made from cut offs out of the scrap bin. Currie has factory looking mounts. Yeah there were a few small road blocks but you should really expect that with aftermarket stuff. "Direct bolt-in" is rarely the case for a lot of things.
Joined: Oct 2001
Posts: 12,221
Likes: 1,141
From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Currie 9" housing and Strange center problems
Im using a moser rear and had to grind a few aluminum case ribs and space the mount out almost 1/8" for clearance. I used this rear because the TQ mount is waaay beefier looking than the currie. On the other hand I like curries factory looking suspension mounts.. If you look at the pic below you'll see (other than the trans fluid covered undercoating) the 2 washers i put between the TQmount and housing.. And yes thats a 4th gen V6 rear swaybar. I use it on the street. I remove the front bar and install the factory 3rdgen WS6 rear bar when I hit the 1/4...
Last edited by TTOP350; Sep 26, 2011 at 10:44 AM.
Thread Starter
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From: Niles, IL
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Re: Currie 9" housing and Strange center problems
Man I've ****ing had it with this Currie housing. The torque arm mount ISN'T EVEN CLOSE!!!!! I've a Jegster adjustable torque arm, and here is it new on my stock 10 bolt. Notice the proper fit and clearance all around?!?!:



Here it is today with the Currie 9":


WTF is going on?!?



Here it is today with the Currie 9":


WTF is going on?!?
Thread Starter
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From: Niles, IL
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Re: Currie 9" housing and Strange center problems
Because I found a housing/center/axles/brakes local and affordable. Got a detroit locker and 4.57 gears for under $320 combined, so I was looking pretty good........................until all this **** started happening!
Joined: Aug 2006
Posts: 12,807
Likes: 108
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Currie 9" housing and torque arm problems
that all blows.
if it makes you feel any better, the jegster TA mount on my stock 10bolt didnt clear the floor for **** either, so i made a different mount and tossed the jegster one in the scrap heap.
is you currie housing centered in the car in that pic?
if it makes you feel any better, the jegster TA mount on my stock 10bolt didnt clear the floor for **** either, so i made a different mount and tossed the jegster one in the scrap heap.
is you currie housing centered in the car in that pic?
Thread Starter
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From: Niles, IL
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Re: Currie 9" housing and torque arm problems
See but the Jegster sit fine with my stock rear, so I've no idea what's going on! I've searched and searched and haven't found anyone with an issue like this yet!!!!
I just want to drive my car!!! Setting up the 3rd member was tomorrow, but not till this is sorted out. I can't even begin to imagine how this can be fixed.......
Thread Starter
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From: Niles, IL
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Re: Currie 9" housing and torque arm problems
Here's some with the bare center on:








Re: Currie 9" housing and torque arm problems
For what it's worth, there are fitment issues all around. A Dana 44 and a BMR adjustable torque arm make contact with the tunnel right at the forward bolt mount. (Actually punched a hole in the floor on a deep compression). I had to add about 3/8" rear axle bias towards the passenger side for a little more clearence.
Thread Starter
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From: Niles, IL
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Re: Currie 9" housing and torque arm problems
I could deal with buying an adj panhard bar for a 3/8" adjustment..........but I'm looking at 3-4"!!!! Somethings got to be wrong here! Someone please tell me I'm going something wrong here.....
Thread Starter
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From: Niles, IL
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Re: Currie 9" housing and torque arm problems
Will an adjustable bar adjust that far?
edit: I dropped the panhard bar just to see how much movement the housing has side to side, and it's only 1.5" max.........not nearly enough. wtf do I do now?
edit: I dropped the panhard bar just to see how much movement the housing has side to side, and it's only 1.5" max.........not nearly enough. wtf do I do now?
Last edited by robguitargod1; Sep 25, 2011 at 11:06 PM.
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Joined: Nov 2007
Posts: 402
Likes: 29
From: milwaukee
Car: 91 Z28
Engine: LS1
Transmission: T56
Axle/Gears: Moser 9" 3.70 35 spline wavetrack
Re: Currie 9" housing and torque arm problems
I know that I have totally different components moser 9"/spohn tq arm,but the spohn tq arm has two sets of holes one set for stock application's and one set an inch over just for 9" housings,this may be part of your problem. Even with that I still needed to grind tq arm bracket and mallet massage the underbody for total unobstructed suspension travel. Also pull out your coil springs so you can see if you have clearance upon full compression of the rear suspension when you get your current issues rectified. I didn't understand how I picked the car off the jack stands without hitting the bump stops but it was the tq arm bracket hitting and picking up the car.
Last edited by 91ls1t56; Sep 26, 2011 at 10:26 AM.
Joined: Oct 2001
Posts: 12,221
Likes: 1,141
From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Currie 9" housing and torque arm problems
It almost looks like you could flip the mount over, cut and move the TQ arm box w cross bolts down..
Last edited by TTOP350; Sep 26, 2011 at 11:03 AM.
Joined: Aug 1999
Posts: 858
Likes: 6
From: Elkton MD, USA
Car: 1985 Camaro Z28, VIN F
Engine: 427 sbc, HSR
Transmission: T-56, self rebuilt 700+ hp
Axle/Gears: Moser 12bolt, 3.42 trutrac
Re: Currie 9" housing and torque arm problems
I know that I have totally different components moser 9"/spohn tq arm,but the spohn tq arm has two sets of holes one set for stock application's and one set an inch over just for 9" housings,this may be part of your problem. Even with that I still needed to grind tq arm bracket and mallet massage the underbody for total unobstructed suspension travel.
Thread Starter
Senior Member
iTrader: (4)
Joined: Oct 2008
Posts: 857
Likes: 5
From: Niles, IL
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Re: Currie 9" housing and torque arm problems
I know that I have totally different components moser 9"/spohn tq arm,but the spohn tq arm has two sets of holes one set for stock application's and one set an inch over just for 9" housings,this may be part of your problem. Even with that I still needed to grind tq arm bracket and mallet massage the underbody for total unobstructed suspension travel. Also pull out your coil springs so you can see if you have clearance upon full compression of the rear suspension when you get your current issues rectified. I didn't understand how I picked the car off the jack stands without hitting the bump stops but it was the tq arm bracket hitting and picking up the car.
Thread Starter
Senior Member
iTrader: (4)
Joined: Oct 2008
Posts: 857
Likes: 5
From: Niles, IL
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Re: Currie 9" housing and torque arm problems
A kind third gen owner sent me this.........exactly what It should look like! Notice how the torque arm faces directly in front of the mount/bolts! Exactly what I'll be doing. Thanks Derrick!
Thread Starter
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iTrader: (4)
Joined: Oct 2008
Posts: 857
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From: Niles, IL
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Re: Currie 9" housing and torque arm problems
So after a full Saturday of work, here's what I've some up with. I fabricated a 1/4" torque arm bracket that relocated the arms position aprox 3" to the passenger side. I set up my pinion preload so that I'd be able to mock up the center section on the housing and design around the yoke.












Joined: Aug 2006
Posts: 12,807
Likes: 108
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Currie 9" housing and torque arm problems
there is some extra material on that you can trim off when its welded up, but it looks like a step in the right direction to me!
Thread Starter
Senior Member
iTrader: (4)
Joined: Oct 2008
Posts: 857
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From: Niles, IL
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Re: Currie 9" housing and torque arm problems
The torque arm is for sale now btw, but not listed in the classifieds yet. $250. Includes the custom mount, arm, tunnel plate, bolts. $250
On Probation
Joined: Oct 2008
Posts: 6,319
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From: Northern Utah
Car: seeking '90.5-'92 'bird hardtop
Engine: several
Transmission: none
Axle/Gears: none
Re: Currie 9" housing and torque arm problems
Seriously curious why none of you are just taking a big hammer to the offending bits of the floor pan?
Thread Starter
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Posts: 857
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From: Niles, IL
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Re: Currie 9" housing and torque arm problems
Joined: Mar 2000
Posts: 5,703
Likes: 132
From: Orange, CA
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: Currie 9" housing and torque arm problems
Currie is in my back yard and I'm here to tell you they suck.
Nasty attitude.
I went with a Strange 12 bolt, dropped right in and hooked up like stock.
After talking to them I made up my mind, it was an easy choice.
Nasty attitude.
I went with a Strange 12 bolt, dropped right in and hooked up like stock.
After talking to them I made up my mind, it was an easy choice.
Thread Starter
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iTrader: (4)
Joined: Oct 2008
Posts: 857
Likes: 5
From: Niles, IL
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Re: Currie 9" housing and torque arm problems
Well Strange Engineering is literally half a mile from MY house!
Joined: May 2008
Posts: 867
Likes: 1
From: pawtucket RI
Car: 1986 iroc
Engine: alum. head 350 supercharged
Transmission: 6speed
Axle/Gears: ford 9in 3.90 35 spline moser axles
Re: Currie 9" housing and torque arm problems
i have a moser 9inch and tried that jegster torque arm ran into the same problem just ended up selling it and put my factory in for now till I decided what other one I want
Joined: Sep 2009
Posts: 3,776
Likes: 101
From: Spokane WA
Car: 92 Lingenfelter Z28 articwhite
Engine: Aluminum 615BBC
Transmission: Th400wbrake/curri entps9" locker
Axle/Gears: 4.11/4.30/4.56
Re: Currie 9" housing and torque arm problems
currie 9" and Ladder bars for me. fits like a glove...
Joined: Sep 2009
Posts: 3,776
Likes: 101
From: Spokane WA
Car: 92 Lingenfelter Z28 articwhite
Engine: Aluminum 615BBC
Transmission: Th400wbrake/curri entps9" locker
Axle/Gears: 4.11/4.30/4.56
Re: Currie 9" housing and torque arm problems
but even i was bit by the sphon parts...(not fitting with GM parts)tie rods to larg to work with their bolt in K member...
but its the lack of they dont give a rats ***..they got your money...
but its the lack of they dont give a rats ***..they got your money...
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