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Old PTO manuals or other literature
#1281517 Tue Sep 25 2018 11:36 PM
Joined: Nov 2011
Posts: 2,577
P
Shop Shark
Hey all,

Looking to gather information. Do any of you all have any old technical manuals, parts catalogs, sales literature for PTO's used in old trucks in the 1930's-1980's? I am on the quest for any part numbers for any brand/model of PTO and the transmissions that they are designed to fit. Does not necessarily have to be specific to Chevys.

Thanks in advance for looking through your "truck stuff" literature!

Paul

Re: Old PTO manuals or other literature
Paul_WNC #1281542 Wed Sep 26 2018 02:57 AM
Joined: Jun 2011
Posts: 3,603
E
Shop Shark
I have never come across any, nor any people who might have some. Might need to find an old Chelsea rep?

Ed


'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
Re: Old PTO manuals or other literature
Paul_WNC #1281736 Fri Sep 28 2018 02:45 PM
Joined: Aug 2018
Posts: 46
S
Wrench Fetcher
I have a 1958 J. C. Whitney & Co catalog that has a page of PTO "Power Take-Offs For All Trucks" (it list columns of PTO's for many brands of trucks) . Has parts numbers but not PTO manufacturers.

Re: Old PTO manuals or other literature
Paul_WNC #1281833 Sat Sep 29 2018 10:51 AM
Joined: Nov 2011
Posts: 2,577
P
Shop Shark
Hey Soggy,

By all means, please share the catalog. Any information may stitch together pieces to the puzzle.

Paul

Re: Old PTO manuals or other literature
Paul_WNC #1281849 Sat Sep 29 2018 04:06 PM
Joined: Aug 2018
Posts: 46
S
Wrench Fetcher
Paul,
The older JC Whitney catalogs are cheap pulp paper with sometimes tiny print. I will attach a scan of the 1958 PTO page , but the file size may not be easy to read. The section on PTO's was 1 major page, and another adjoining page had other truck transmission info (like devices for converting 3 speed to 4 speed).
You can also possibly search the interwebs for any PDF versions of older JCWhits that someone may have scanned and posted. The fleabay will oft have some 1950's -1960' JCWhits for sale.
Finally, search fleabay and other sources for ARROW or SPICER 1950's-60's documents as they had a lot to do with PTO's on transmissions.
Good Luck with your search!

Attached Files
1958JCW.jpg (93.3 KB, 139 downloads)
Re: Old PTO manuals or other literature
Paul_WNC #1281907 Sun Sep 30 2018 01:42 AM
Joined: Jul 2004
Posts: 3,562
R
Shop Shark
Is 53Moneypit still around? He used to know a lot about hoists and hydraulic dump beds and such. I suspect he was pretty familiar with PTO's also.


Rich

'47 Loadmaster

Life is like a roll of toilet paper--the closer you get to the end, the faster it goes!






Re: Old PTO manuals or other literature
Paul_WNC #1281914 Sun Sep 30 2018 02:01 AM
Joined: Apr 2005
Posts: 8,915
Grease Monkey, Moderator General Truck Talk & Greasy Spoon
He left us years ago.


Martin
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ā€˜65 Chevy Biscayne 4dr 230 I-6 one owner (Iā€™m #2)
ā€˜39 Dodge Businessmans Coupe
USAF 1965-69 Weather Observation Tech (got paid to look at the clouds)


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Re: Old PTO manuals or other literature
Paul_WNC #1282799 Sun Oct 07 2018 11:34 AM
Joined: Nov 2011
Posts: 2,577
P
Shop Shark
Hey all,

I finally took some time to examine the 1958 JC Whitney catalog page that Soggy contributed. Looks like there are only a total of 13 different PTO combinations at least from the 1928-1958 sample years. The sample set examined is only for single speed rear output PTO models. These all look to be the smaller series sizes as what Parker would now call a 100 series PTO. Some of the early straight cut gears in the non-syncro and Clark era can easily be differentiated from the later helical cut gear era further aiding in identification. The gear position of "engaged" and "disengaged" is much different on the big 3 manufacturers so that can aid in differentiating one variety of PTO from another. The gear position on Chevy (Muncie) seems to be unique from all of the other truck companies. Interesting to note that the Clark 5-speed transmission was used by REO, Dodge, Ford, GMC, and International and all of them used a similar PTO.

There is one part differentiation that I cant really understand pertaining to the Chevy trucks. One part number is listed for 1948-1950 Chevy trucks and a different part number for 1951-1958 Chevy trucks. I thought all of the SM420 transmissions were essentially the same from 1947-1967? What was the change at the 1950-1951 year?

Getting closer to making some sense of the myriad of part numbers on later PTO manufacturers, namely Chelsea. Perhaps if we could assemble a list of other PTO part numbers found on "trucks in the wild", a trend may appear. If you happen to be under your dump bed Chevy, please take note of the PTO brand and part number and pass it along.


Paul

Re: Old PTO manuals or other literature
Paul_WNC #1282835 Sun Oct 07 2018 07:41 PM
Joined: Apr 2007
Posts: 781
L
Shop Shark
Paul,
My 1950 Chevy COE, model 5700 has a Spicer PTO. I found the following code; AANC-7-14. This a single speed unit, cable controlled.
Kent

Last edited by Lightholder's Dad; Sun Oct 07 2018 07:44 PM. Reason: addnl info.

1937 Chevy 1/2 ton
1942 Chevy 1/2 ton
1947 Diamond T Model 509
1951 Chevy 1/2 ton
1950 Chevy COE Model 5700 ~ "Barney" ~ And more pix
Re: Old PTO manuals or other literature
Lightholder's Dad #1282911 Mon Oct 08 2018 11:57 AM
Joined: Nov 2011
Posts: 2,577
P
Shop Shark
Originally Posted by Lightholder's Dad
Paul,
My 1950 Chevy COE, model 5700 has a Spicer PTO. I found the following code; AANC-7-14. This a single speed unit, cable controlled.
Kent

Thanks Kent! I will look at the numbers on some of my PTO's on known applications and share them as well. I will start a compilation and maybe even see some duplicating numbers.

Paul

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