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#1
27-01-12, 04:58
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WTB- Chevrolet gearbox enclosed shaft
Wanted to buy
Chevrolet 4 Speed enclosed shaft speedo drive plate or complete gearbox My speedo drive housing is damaged for the C8 Pm if you can help Thanks 
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Have a good one  Andrew Custodian of the "Rare and Rusty" 
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#3
02-02-12, 22:47
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Clarification of which parts are needed
Hi Andrew
Can you clarification of which parts are needed? I was trying to find the parts break out sheets, to see if I could find a source in the states. But I'm really not sure which one you have. In the parts book there are two versions for the enclosed torgue tube design one is cast right into the rear of the transmission case and the other is like the insert in the picture below which is a separated bolt on unit. Also is it just the speedometer drive that is messed up or is the entire rear unit damaged? Hope the picture helps identify which part. If that is not the correct parts sheet give me some more info on the transmission and I'll try and help. I'm working from a Canadian Master Parts book which covers 38-51 so maybe can help ID what civilian Chevys might have the same part. Cheers Phil
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Phil Waterman `41 C60L Pattern 12 `42 C60S Radio Pattern 13 `45 HUP http://canadianmilitarypattern.com/ New e-mail Philip@canadianmilitarypattern.com
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#4
03-02-12, 00:13
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All the parts on the back end of the tranny are the same as the commercial half ton parts from the forties. I should have some somewhere but will have to wait till spring to look.
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1940 Cab 11 C8 Wireless with 1A2 box & 11 set 1940 Cab 11 C8 cab and chassis 1940 Cab 11 C15 with 2A1 & Motley mount & Lewis gun 1940 Cab 11 F15A w/ Chev rear ends 1941 Cab 12 F15A 1942-44 Cab 13 F15A x 5 1942 cab 13 F15A with 2B1 box 1943 cab 13 F15A with 2H1 box 1943 Cab 13 C8A HUP 1944 Cab 13 C15A with 2C1 box 1943 Cletrac M2 High Speed Tractor MkII Bren gun carrier chassis x 2
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#5
03-02-12, 06:38
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Thanks for the reply
 Part off the list is 4 317 rear bearing retainer It is the same as civilian 1 and 1.5 ton enclosed shaft trucks from late 30's to 40's as David stated .Think they sourced a lot of running gear from civilian 1.5 ton for the cab 12 C8's Any help greatly appreciated A few more pics Third shows where the bolt and bearing retainer let go and caved in and cracked cast housing for speedo drive gear. Hasnt left enough undamaged metal to ream and bush hole
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Have a good one Andrew Custodian of the "Rare and Rusty"
Last edited by aj.lec; 03-02-12 at 06:51.
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#6
04-02-12, 03:32
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Interesting.......
That enclosed rear tranny cover has exactly the same bolt pattern as the CMP part.....so must be interchangeable. So a civilian tranny can be converted to a CMP model with the special CMP open drive shaft cover...... and the speedo gear location is the same..... possibly the part from a civilian speedo gear would also interchange.....
From the enclosed picture you will see the two different models I have come across..... the early model with the fully machined speedo gear is made of very light white metal of some sort.... the later war production are cast steel and the speedo "boss" area is not finished of machined as the speedo gear was fitted to the T-Case.....but they all suffered the same destruction when a yoke bolt worked loose and sheared the mounting bolts and parts of the rear cover...... finding a good rear cover can be a challenge and adds value to the old tranny. Bob Crap ...wrong picture
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada
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