Need assist finding a shop manual... (2001 2500HD 8.1/Allison 5-spd) - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**jocko** · 10-11-2018, 07:55 PM

For some reason, can't seem to find a shop manual (GM, Helm, even a Chiltons or Haynes...) that covers a 2001 2500HD with 8.1/Allison 5-spd drivetrain.
Any help appreciated.

**hatzie** · 10-12-2018, 02:24 PM

The Transmission and transfer case manuals are usually separate from the service manuals.
The Helm part number is GMPT/01-TURM It's two volumes. I have them but not scanned yet...
Unfortunately the M74 Allison 1000 is not in that manual.
I'd get an ASTG manual for that transmission...
https://www.amazon.com/ATSG-ALLISON-.../dp/B012VHJF46

**hatzie** · 10-12-2018, 07:09 PM

You have a PM

**jocko** · 10-12-2018, 09:28 PM

Got it and thanks for this great info Hatzie.

10-11-2018, 07:55 PM	#1
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,975	Need assist finding a shop manual... (2001 2500HD 8.1/Allison 5-spd) For some reason, can't seem to find a shop manual (GM, Helm, even a Chiltons or Haynes...) that covers a 2001 2500HD with 8.1/Allison 5-spd drivetrain. Any help appreciated.

10-12-2018, 02:24 PM	#2
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 4,977	Re: Need assist finding a shop manual... (2001 2500HD 8.1/Allison 5-spd) The Transmission and transfer case manuals are usually separate from the service manuals. The Helm part number is GMPT/01-TURM It's two volumes. I have them but not scanned yet... Unfortunately the M74 Allison 1000 is not in that manual. I'd get an ASTG manual for that transmission... https://www.amazon.com/ATSG-ALLISON-.../dp/B012VHJF46 __________________ 1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials... 1973-1991 GM Light Truck Service, Unit/Overhaul, Wiring Manuals, Parts Books and Some 1968-1999 GM Service Training textbooks in PDF 1988-1998 GMT400 CK service manual project 1988-1993 GMT400 CK parts books. 1967-1972 GM Light, Medium, & Heavy Truck Service Manuals in PDF Please include at least the year and model in your threads. It'll be easier to answer your questions. And please let us know if and how your repairs were successful. Last edited by hatzie; 10-12-2018 at 05:15 PM.

10-12-2018, 07:09 PM	#3
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 4,977	Re: Need assist finding a shop manual... (2001 2500HD 8.1/Allison 5-spd) You have a PM __________________ 1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials... 1973-1991 GM Light Truck Service, Unit/Overhaul, Wiring Manuals, Parts Books and Some 1968-1999 GM Service Training textbooks in PDF 1988-1998 GMT400 CK service manual project 1988-1993 GMT400 CK parts books. 1967-1972 GM Light, Medium, & Heavy Truck Service Manuals in PDF Please include at least the year and model in your threads. It'll be easier to answer your questions. And please let us know if and how your repairs were successful.

10-12-2018, 09:28 PM	#4
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,975	Re: Need assist finding a shop manual... (2001 2500HD 8.1/Allison 5-spd) Got it and thanks for this great info Hatzie.



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