> Technical Manuals > Amphibious
Whether you're operating and maintaining your current vehicle of getting through your first restoration project, you can find all the Technical Manuals (TMs) you need right here!

Please use the links above to find TMs for your particular vehicle and/or interest.
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#1 Restorer's Bundle - M29 & M29C Studebaker "Weasel" G179 Amphibian Trailer Parts Manual Amphibian Trailer Repair Manual
All the information you need to restore & operate a Studebaker Weasel.
Parts Manual for Cleaver-Brooks Amphibian Trailer. Repair Manual for Cleaver-Brooks Amphibian Trailer (G727)
Bundle - G501 GMC 2 1/2 Ton Amphibian (DUKW) Change 1 to TM 9-7604 Operator and Maintenance Manual for Miscellaneous Components M76 Otter (G245) Change 1 to TM 9-772 Operator Manual (Studebaker Weasel G179)
Everything you need to operate, maintain and restore a WW2 Chevrolet 1 1/2 Ton Truck.
Change 1 to TM 9-7604 Operator & Maintenance Manual for M76 Otter (G245).

Format: Stapled
Pages: 69
Change No. 1 to TM 9-772
DUKW Amphibian Truck Co. Supplement FM 55-150 Amphibious Truck Company DUKW Basic Parts Manual
Change to FM 55-150.  38 pages. This is a really fantastic resource if you own a DUKW or are interested in their operation. This manual contains all the information you need to be the CO of a company of DUKW's in WWII. Basic Parts (including spare parts & tools) for GMC 2 1/2 Ton Amphibian Truck (G501) DUKW.  111 pages.
GMC DUKW TM 9-1802A DUKW Engine Troubleshooting & Diagnosis TM 9-1802C
DUKW Engine Manual
Price: $56.99
This manual includes everything you need to know to rebuild your GMC DUKW or CCKW engine. Chapters on normal operation, lubrication, clutch, electrical system, starting system, fuel system, cooling system and more. Engine Troubleshooting & Diagnosis. GMC Publication.

This is a very cool little pamphlet from GM written to help a mechanic diagnose the problem "when the performance of a motor vehicle fails to measure up to known operating standards."

"This booklet is designed to serve as an aid to the field personnel in recognizing trouble, and the application of the correct remedies."

18 pages.
Army Technical Manual covering repair and rebuild of the hull and drive units for the WWII DUKW.
DUKW Operation Procedures from Pacific War.  Typescript with illustrations. TM 9-802 Operator and Maintenance for DUKW DUKW Operator Supplement
DUKW Operation Procedures from Pacific War. Typescript with illustrations.

We don't know a lot about this manual other than it appears to have been field prepared in the Pacific during WW2. This is a very practical manual for operating a DUKW in all conditions.
This is the main operations and maintenance manual for the DUKW it should be the first manual in every DUKW owner's collection! Change to TM 9-802.  63 pages.
TM 9-1802B DUKW Power Train Rebuild DUKW Time Schedule Guide for Repairs Ford Operator Instructions for GPA (G504)
Complete instructions on the repair and rebuild of the DUKW power train. Time Schedule Guide for Maintenance & Repairs on GMC 2 1/2 Ton Amphibian Truck (G501) DUKW.

US Army publication that provides a recommended maintenance schedule and life estimates for wear parts on the DUKW>

22 pages.
Operator's Instruction for GPA, by Ford Motor Company. Neat little instruction manual which includes helpful tips for beach landings and more.
Gama Goat Engine Manual Gama Goat Lubrication Order Gama Goat Maintenance Manual
TM 9-2815-214-34 Engine Rebuild Manual Lubrication Order.  M561 & M792 "Gama Goat".  Varnished "Gama Goat" Maintenance Manual.  M561 & M792. 480 pages.
Gama Goat Operation and Preventative Maintenance Gama Goat Operator's Manual Gama Goat Operator's Manual
DA Pamphlet 750-31.  Staff of U.S. Army PS Magazine.  40 pages. Operator Manual for M561 & M792 "Gama Goat" 1 1/4 Ton Truck.  1970 Edition in 8x10 fomat. Operator Manual for M561 & M792 "Gama Goat" 1 1/4 Ton Truck.  1977 Edition in 6x9 format.
Gama Goat Parts Manual (1977) Gama Goat Rebuild Manual Gama Goat Rebuild Parts Manual
Basic Illustrated Parts for M561 & M792 "Gama Goat".  1977 Edition. Rebuild Manual.  M561 & M792.  300 pages. Rebuild Parts Manual. M561 & M792 "Gama Goat".  633 pages.
Gamma Goat Parts Manual (1970) LO 9-772 Lube Order for Studebaker Weasel M28 & M29 ORD 7 G504 GPA Spare Parts and Equipment List
Basic Illustrated Parts. M561 & M792 "Gama Goat".  1970 Edition. LO 9-772 Lubrication Order for M29 Weasel ORD 7 Basic Spare Parts & Equipment List for Ford GPA.