Auburn Posi
Thread Starter
Joined: Jan 2001
Posts: 948
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From: Fresno, CA
Car: 87 Z28
Engine: LT1
Transmission: T-56
Auburn Posi
I have a 1989 Camaro RS w/ L03, I am going to put 3.73 gears in and an auburn posi, is this the right one?
Auburn Gear Posi GM 7.5" 26 Spline 3-73 Up
and my gears will be carrier 3
Auburn Gear Posi GM 7.5" 26 Spline 3-73 Up
and my gears will be carrier 3
Supreme Member
Joined: Nov 1999
Posts: 1,069
Likes: 0
From: Charlotte, NC
Car: 1991 Camaro RS
Engine: GMPP 350 HO w/TBI
Transmission: 700R-4
Axle/Gears: 10-bolt w/3.73s
This spring I am doing the same thing...Auburn Pro Series differential and Richmond 3.73s. I wrote Auburn and the part number I needed...here is what they responded with...
the only thing is that i dont know if in 89 they had the 26 or 28 spline axles. The year they switched to the newer 28 spline axles was right around 89. If you do have them then this is the part you need if you want the Pro Series.
Here is Auburn's Email address if you wanna check it out with them...
agdiffs@auburngear.com
-Brian
------------------
1991 Camaro RS - Ultra Blue Metallic, T-Tops
----------------------------------------------
GM 350 HO Crate Engine - Vortec Heads, Edelbrock Intake, Holley 670 CFM TB, Edelbrock Water Pump, March Pulleys, MSD 6AL, Blaster Coil, 8.5mm Super Conductors, Cap and Rotor, Rapidfires, Hypertech Fan Switch & Chip, SLP 1 3/4" Stainless Headers, 3" Cat Back, Flowmaster 40 Series
700R4 - 2,400 Stall Converter, Vette Servo, Shift Kit, B&M Super Cooler
GM 10 Bolt -coming soon Auburn Pro Series Differential, Richmond 3.73s
Brian's 1991 RS Central NY F-Body Association
Join the Third Generation F-Body TBI Web Ring
z28boy@twcny.rr.com IM name: Z28 Boy
<font face="Verdana, Arial" size="2">Good morning Brian,
As long as you are staying with the 7 5/8 rearend 28 spline, all you need to change is the ring & pinion set and the differential. As far as what we supply, it is only the limited-slip differential. My suggestion is to go with our Pro Series, it is a higher biased unit and should work well for you. For the 3.73 ratio, you will need our part number 542046. We do not sell direct, only through distributors, they are listed by state on our web page. Hope this helps. Thanks for the inquiry, good luck with your rebuild.</font>
As long as you are staying with the 7 5/8 rearend 28 spline, all you need to change is the ring & pinion set and the differential. As far as what we supply, it is only the limited-slip differential. My suggestion is to go with our Pro Series, it is a higher biased unit and should work well for you. For the 3.73 ratio, you will need our part number 542046. We do not sell direct, only through distributors, they are listed by state on our web page. Hope this helps. Thanks for the inquiry, good luck with your rebuild.</font>
Here is Auburn's Email address if you wanna check it out with them...
agdiffs@auburngear.com
-Brian
------------------
1991 Camaro RS - Ultra Blue Metallic, T-Tops
----------------------------------------------
GM 350 HO Crate Engine - Vortec Heads, Edelbrock Intake, Holley 670 CFM TB, Edelbrock Water Pump, March Pulleys, MSD 6AL, Blaster Coil, 8.5mm Super Conductors, Cap and Rotor, Rapidfires, Hypertech Fan Switch & Chip, SLP 1 3/4" Stainless Headers, 3" Cat Back, Flowmaster 40 Series
700R4 - 2,400 Stall Converter, Vette Servo, Shift Kit, B&M Super Cooler
GM 10 Bolt -coming soon Auburn Pro Series Differential, Richmond 3.73s
Brian's 1991 RS Central NY F-Body Association
Join the Third Generation F-Body TBI Web Ring
z28boy@twcny.rr.com IM name: Z28 Boy
Thread Starter
Joined: Jan 2001
Posts: 948
Likes: 0
From: Fresno, CA
Car: 87 Z28
Engine: LT1
Transmission: T-56
hmm thanks i emailed them.. the part # for my first post is 542057
but i found at jegs that it appears that part # is for 73-88 cars... according to jegs, the correct part # would be 542040 for the carrier 3, and 542041 for the carrier 2.
That pro series one also is listed at gm but its 400 bux.
109-542046 PRO GM 7-5/8 88-UP 3.23+ $ 395.99
[This message has been edited by TMoNeE (edited February 17, 2001).]
but i found at jegs that it appears that part # is for 73-88 cars... according to jegs, the correct part # would be 542040 for the carrier 3, and 542041 for the carrier 2.
That pro series one also is listed at gm but its 400 bux.
109-542046 PRO GM 7-5/8 88-UP 3.23+ $ 395.99
[This message has been edited by TMoNeE (edited February 17, 2001).]
Senior Member
Joined: Mar 2000
Posts: 976
Likes: 0
From: orchard park, NY, USA
just get the SLP take off. Its the same one used in the new ram airs and its available in 2 and 3 series versions for about 99$. Thats would i would go with.
------------------
1989 pontiac firebird
bright red exterior(just repainted)
grey interior
5 spd
305 TBI (stock)
WS.6 formula wheels
3.73 posi rear end
http://members.aol.com/j007golden/Mikey89.html
-------------------------
1985 trans am
factory bright yellow
4 wheel disks
16 inch wheels
305 TPI
power antenna and mirrors
t tops
------------------
1989 pontiac firebird
bright red exterior(just repainted)
grey interior
5 spd
305 TBI (stock)
WS.6 formula wheels
3.73 posi rear end
http://members.aol.com/j007golden/Mikey89.html
-------------------------
1985 trans am
factory bright yellow
4 wheel disks
16 inch wheels
305 TPI
power antenna and mirrors
t tops
Junior Member
Joined: Oct 2000
Posts: 56
Likes: 0
From: near Detroit, Mi USA
<font face="Verdana, Arial" size="2">Originally posted by ONEFINE8T9:
just get the SLP take off. Its the same one used in the new ram airs and its available in 2 and 3 series versions for about 99$. Thats would i would go with.
</font>
just get the SLP take off. Its the same one used in the new ram airs and its available in 2 and 3 series versions for about 99$. Thats would i would go with.
</font>
------------------
'88 T/A
305 TBI with WC-T5
50,000 miles
Flowmaster 3" exhaust
14" K&N Open Element
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Senior Member
Joined: Mar 2000
Posts: 976
Likes: 0
From: orchard park, NY, USA
ya, u can get these units from SLP engineering .com. They are the take off versions from the new trans ams and camaros. They work excellent from what i have heard. I mean they must work pretty damn good if pontiac is installing them in the ram airs.
TGO Supporter
Joined: Oct 2000
Posts: 1,231
Likes: 0
From: Wilmington NC
Car: C1500
Engine: 350
Transmission: 700r4
Axle/Gears: 2.73
I always get the Auburn unit and the "Torsen?" mixed up.
How does the Auburn unit stack up to the SLP one?
[This message has been edited by Keith5 (edited February 20, 2001).]
How does the Auburn unit stack up to the SLP one?
[This message has been edited by Keith5 (edited February 20, 2001).]
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