did all 9-bolt cars get aluminum driveshafts?
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From: Cincinnati, Ohio 45215
did all 9-bolt cars get aluminum driveshafts?
A guy I know told me that his car had an aluminum driveshaft, then he says "all cars with 9-bolts have an aluminum driveshaft, it was part of the package"
is that true?
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-=1987 Formula 350=-
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is that true?
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-=1987 Formula 350=-
Member Greater Cincinnati F-Body Association
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From: Fort Wayne, Indiana, U.S.A.
Car: CTS-V & 89 Z28 vortech charged
Engine: LS6 & 383 charged stroker
Transmission: 6-speed & 5 speed
No. I have an '89 Iroc-z w/9-bolt, with rear disks, I just last weekend pulled out the rusty stock steel shaft to replace with new G.M. aluminum shaft. So, not on my car.
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Iroc Z28 with several mods for domination of autocross courses.
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Iroc Z28 with several mods for domination of autocross courses.
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Joined: Aug 1999
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From: San Diego, CA
Car: 87 Buick GN
Engine: 3.8L (231 cid) V6
Transmission: 200-4R
Axle/Gears: 10 bolt G80/ 3.42
<font face="Verdana, Arial" size="2">Originally posted by espirocz:
No. I have an '89 Iroc-z w/9-bolt, with rear disks, I just last weekend pulled out the rusty stock steel shaft to replace with new G.M. aluminum shaft. So, not on my car.
</font>
No. I have an '89 Iroc-z w/9-bolt, with rear disks, I just last weekend pulled out the rusty stock steel shaft to replace with new G.M. aluminum shaft. So, not on my car.
</font>
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1989 IROC-Z, ZZ3 shortblock with some bolt-ons.
13.20 @ 108.69, 2.2 60'
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<font face="Verdana, Arial" size="2">Originally posted by Superblue87Formula:
A guy I know told me that his car had an aluminum driveshaft, then he says "all cars with 9-bolts have an aluminum driveshaft, it was part of the package"
is that true?
</font>
A guy I know told me that his car had an aluminum driveshaft, then he says "all cars with 9-bolts have an aluminum driveshaft, it was part of the package"
is that true?
</font>
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From: San Diego, CA
and to find out if it ORIGINALLY came with an aluminum DS, look for RPO JG1.
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1989 IROC-Z 5.7L
NOS 150HP kit
ProBuilt 700R4, PI Vigilante 2800 stall lockup
Baer Brakes 12" Sport System
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1989 IROC-Z 5.7L
NOS 150HP kit
ProBuilt 700R4, PI Vigilante 2800 stall lockup
Baer Brakes 12" Sport System
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From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
Stock aluminum... 
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Ed Miller
Charlotte, NC
1991 RS, 305 TBI,
bone stock driver;
1988 IROC L98
TPIS Fast Pack, modified MAF, MSD 6A, Dynomax cat-back so far.
"Do you want to race or don't ya? I want to race." Dale Earnhardt
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Ed Miller
Charlotte, NC
1991 RS, 305 TBI,
bone stock driver;
1988 IROC L98
TPIS Fast Pack, modified MAF, MSD 6A, Dynomax cat-back so far.
"Do you want to race or don't ya? I want to race." Dale Earnhardt
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From: Madison, AL, USA
There's a pattern here. Apparently most/all 87s and 89s came with the steel shaft but it's pretty common for 88s to have AL. Maybe the supplier was running a special on AL shafts that year?
Joined: Jul 1999
Posts: 10,950
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From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
I've noticed that too. A lot of 88 cars came with aluminum driveshafts. I dunno what it is.
9-bolt rears have nothing to do with whether your car has an aluminum driveshaft or not, so inform the guy you know that he is wrong.
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1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
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9-bolt rears have nothing to do with whether your car has an aluminum driveshaft or not, so inform the guy you know that he is wrong.
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West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
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