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05-03-2010, 09:11 PM
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#1 |
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67-72 Addicted
Join Date: Oct 2007
Location: Guelph Ontario
Posts: 256
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2500HD trans option
Do all the 2500HD 6.0L gas trucks come with the alison trans. or only the 4L80E?
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'72 K20 |
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05-03-2010, 11:41 PM
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#2 |
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Registered User
 
Join Date: Jan 2003
Location: Denison, Texas
Posts: 1,919
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Re: 2500HD trans option
I believe the 4L80E was the standard issue tranny on the gas engines in the 25/3500/HD trucks, and the Allison was an option. I believe the same goes for the diesels.
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1998 GMC Sierra SLE 1/2 ton 2WD 305 Vortec -Gibson Stainless Cat Back Swept Side -SS Wheels 2005 Honda CRF250R 2006 Honda CRF150F |
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05-04-2010, 12:17 AM
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#3 |
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Registered User
Join Date: Sep 2003
Location: New Salem, ND
Posts: 1,558
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Re: 2500HD trans option
I believe the allison was the only trans that came with the diesels. Unless the 4l80e was an option, although I don't know why anyone would go that route.
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07 Chevy classic LBZ Duramax (a few mods) '67 Chevy 1/2 ton 2wd (in pieces) '69 Chevy 1/2 ton 2wd (on hold) '71 GMC 3/4 ton 4x4 ‘71 GMC 1/2 ton 2wd suburban |
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05-06-2010, 10:41 PM
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#4 |
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Windy Corner of a Dirty Street
Join Date: Jun 2003
Location: Pueblo West, Colorado
Posts: 2,926
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Re: 2500HD trans option
As far as transmission availability in the 2500HD and 3500 trucks…...
Automatics 6.0L = 4L80E 8.1L = Allison 6.6L Diesel = Allison Manuals 6.0L = NV4500 8.1L = ZF S6-650 6.6L Diesel = ZF S6-650 To make things confusing, the Suburban’s and G-vans with 8.1L engines only came with 4L80E transmissions. G-vans with Duramax engines also came with 4L80E’s. No Allison option for Subs or vans.
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Current vehicle collection: 1978 Chevrolet K10, 8.1L, NV4500, NP205 1989 Chevrolet Suburban, 8.1L, NV4500, NP241 1993 Chevrolet C1500 Sportside, TBI 7.4L, 4L60E 2001 Chevrolet K2500HD, Ext Cab, SWB, 8.1L, ZF 6 speed 2014 Chevrolet Impala LTZ 3.6L Vortec 8.1L because life is too short to tolerate underpowered vehicles
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05-07-2010, 09:24 AM
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#5 |
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67-72 Addicted
Join Date: Oct 2007
Location: Guelph Ontario
Posts: 256
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Re: 2500HD trans option
was it possible to get a 6.0L optioned with an allison?
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'72 K20 |
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05-07-2010, 10:17 AM
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#6 | |
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Windy Corner of a Dirty Street
Join Date: Jun 2003
Location: Pueblo West, Colorado
Posts: 2,926
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Re: 2500HD trans option
Quote:
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Current vehicle collection: 1978 Chevrolet K10, 8.1L, NV4500, NP205 1989 Chevrolet Suburban, 8.1L, NV4500, NP241 1993 Chevrolet C1500 Sportside, TBI 7.4L, 4L60E 2001 Chevrolet K2500HD, Ext Cab, SWB, 8.1L, ZF 6 speed 2014 Chevrolet Impala LTZ 3.6L Vortec 8.1L because life is too short to tolerate underpowered vehicles
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