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03-02-2009
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#1 |
 
Join Date: Dec 2007
Location: Madrid, Spain (Europe)
Posts: 55
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'91 L98 manual gearbox, compatible with ZR-1's?
Hi guys,
Sorry if I'm asking a dumb question (I made a search and I found nothing in other threads) but here it is: I came across a ZF 6-speed transmission off of a '91 L98 Vette, is it compatible with my '90 Z? I heard the housings are different but, in case of failure of my present gearbox, could I interchange the housings? I could get this extra gearbox at a very good price so I'm thinking about keeping it as a replacement part for the future. Thanks a lot. Pete |
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03-02-2009
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#2 | |
 
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,179
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Re: '91 L98 manual gearbox, compatible with ZR-1's?
Quote:
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978 |
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03-02-2009
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#3 | |
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Join Date: Dec 2007
Location: Madrid, Spain (Europe)
Posts: 55
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Re: '91 L98 manual gearbox, compatible with ZR-1's?
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03-02-2009
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#4 | |
  
Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,675
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Re: '91 L98 manual gearbox, compatible with ZR-1's?
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1990-1991 should have same internal parts. Post the trans numbers on the side tag of both transmissions the one in your Z and the L98 trans. Also the color of tags. Pete
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'91 #1635 PoloGreen 350 LT5 11.09 @ 129.27 11.04 @ 128.86 474RWHP 400RWTQ http://www.youtube.com/watch?v=SFNFOhGGlR4 http://www.youtube.com/watch?v=ZlRIOMwaDYY https://sites.google.com/site/peteszr1garage |
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03-02-2009
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#5 |
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Join Date: Dec 2007
Location: Madrid, Spain (Europe)
Posts: 55
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Re: '91 L98 manual gearbox, compatible with ZR-1's?
I'll collect that information on the tags as soon as possible and I'll post it here.
Thanks a lot Jeff and Pete. |
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02-21-2010
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#6 |
Join Date: Aug 2007
Location: Barcelona, SPAIN
Posts: 41
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Re: '91 L98 manual gearbox, compatible with ZR-1's?
Hi Pete.
Your '91 L98 transmission is the same as the ZR-1 except for the input shaft. But you nearly neeed to completely dissasemble the transmission to change the input shaft for a ZR-1 one, that is longer. Next time we met, I will explain you.... I think I know where it comes that '91 trans..... Ramon. |
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02-21-2010
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#7 |
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Join Date: Dec 2007
Location: Madrid, Spain (Europe)
Posts: 55
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Re: '91 L98 manual gearbox, compatible with ZR-1's?
Ram?n, no worries about the trans because we sold it long ago.
Yes, you are right about the origin of the ZF gearbox 
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