Re: GM Semis
 

Like the Conventional Cab one. Don't remember ever seeing one like it, but it's pretty cool.

Bill

Re: GM Semis
 

Crown Steel used to make the cabs for Mack and White Motor Co. 50 miles down the road.

Allison released automatic transmissions for trucks in 1957, but prior to that had planetary power shift transmissions that were used off highway. The early MT 40,41,42 had front and rear pumps so could be push started.They normally started in 3rd gear...................unless the driver selected the 1-2 position. The HT 70 was similar, but bigger and could be behind 8V71, 350 Cummins, but Allison always had an input torque limit .
GMC used the Hydramatic car 4 speed in medium trucks in 54, possibly '53 .

Re: GM Semis
 

I think the Hydramatic first appeared in these M135/M211 GMCs built for the military starting in 1951. When I was in the army (1966/67) most were used for driver training or Nat'l Guard. https://farm4.staticflickr.com/3896/...5e375ef5_b.jpgXM211, 1952 (GMC) by PAcarhauler, on Flickr

Re: GM Semis
 

Facebook
https://fbcdn-photos-d-a.akamaihd.ne...b26f74a73597ed

Re: GM Semis
 

That's ^ nice!!!

Re: GM Semis
 

https://fbcdn-photos-c-a.akamaihd.ne...61522396c65601

Shared with Permission

Re: GM Semis
 

[QUOTE=KQQL IT;6840708]https://farm4.staticflickr.com/3857/...82216b0b_o.jpg

Maybe a repost

https://fbcdn-sphotos-h-a.akamaihd.n...44550286_o.jpg

Still alive and part timing.[
/QUOTE]

Re: GM Semis
 

Sure is load of gold there, including the truck hauling it.

Bill

Re: GM Semis
 

Good stuff indeed!, I like the red Autocar, Wondering what's powering the early Autocar with the later chassis/rears, Cool trucks.

Re: GM Semis
 

Re: GM Semis
 

Great picture.

The truck looks fairly new.

Bill

Re: GM Semis
 

Do the C40 and up follow the pickup cabs. Look like that is a 64-66 cab?
Or where behind a bit

Re: GM Semis
 

Right, that is basically the same as a Pick-Up Cab. Many of the parts will interchange.

Bill

Re: GM Semis
 

I thought that was the case. Just was curious if the years followed the pickups.
60-63 64-66 and so on.

Re: GM Semis
 

Right, they followed the same style Cab in year models. Same with '67 to '72, a C-70 Medium has basically the same Cab as a C-10.

Bill

Re: GM Semis
 

https://fbcdn-photos-c-a.akamaihd.ne...e08147d7489429

Mike Kelett via facebook

Re: GM Semis
 

GMC 860s, 1959s?
Hope this isn't a repost

Re: GM Semis
 

I had the hots for 860s so bad about 25 years ago, then my lust switched to the early '50s fat cabs. So I bought two 503 gas powered and one with 4-71 GM diesel. Now I have none .

Re: GM Semis
 

You still have an MH or two, I believe ??

Re: GM Semis
 

The DR-860 was actually built through 1962. Reason I was told was because the 860 had the 6-71 inline Detroit, and the DB-7000 which was supposed to replace the 860 had the 6V-71 V-6. The 6V-71 had cooling problems early on and a lot of fleets still wanted the 6-71, so the 860 stayed around until the DBI-7000 came out which had the 6-71. Junkmandan, does that sound right to you?

Re: GM Semis
 

4x4 conversion towing a Greyhound Bus

Re: GM Semis
 

allmost looks like the used the undercariage of a militairy truck for that one

Re: GM Semis
 

All the initial V-71 blocks were built with no cooling below the port, and if you were taking the max horsepower out of 'em, they'd seize the pistons. Then, after removing the liners for overhaul, you'd find the block lower half shifted in relation to the top portion. So a bore job was required and oversize liners installed. Then you might get 35,000 miles and have to do it again . I believe around 62-63 DD came out with water below port blocks, then the Vs lived . Another part of the equation was the 200 lb weight saving the 6V71 offered over the inline .

Re: GM Semis
 

702 v12
GMC: http://youtu.be/KnQElM3Qr6Y

Re: GM Semis
 

What-----------When you see the big hubs on front wheels, it's usually a product of Marmon-Harrington from Colorado or Howe-Coleman out of upstate New York.