Hey Fletch,

I may be able to shed some light on this issue. I have a 42 1 1/2 ton that someone in the past put in a 1959 235 with an SM420 tranny. In order to get the clutch and brake pedal to work they welded on a segment of an earlier bellhousing that had the boss for the pedal shaft. I've had the truck for over 30 years but just last year I noticed how poorly the weld was done. Looked dangerous to me and was trying to figure out what to do. Here is a picture of it. http://s1293.photobucket.com/user/M...ellhousing/DSCN7360_zps8dbb68e9.jpg.html

Well it just so happened as I perusing the parts at Jim Carter Truck Parts I saw where they sold a modified bellhousing with the pedal shaft for the owners of the early 40's trucks so they could use the more modern trannies such as the SM420. Voila !! I believe the change in the bellhousing in these rigs occured in 1948. That's when they went to the later tranny bolt pattern. Either one will bolt to the inline six block. So I went ahead and purchased the modified bellhousing from Jim Carters. Here's a picture of the bellhousing I installed with much better welding for the pedal shaft. http://s1293.photobucket.com/user/M...ellhousing/DSCN7356_zpsd0204952.jpg.html

Here's a link to the part if you are interested. http://www.oldchevytrucks.com/cart/index.asp?sdes=bellhousing

Check it out. And check out the rest of my photos on this subject in my photobucket album.

Tony

Last edited by Tony D El; 11/12/2013 5:22 AM.
1942 Chevrolet 1 1/2-ton (G-506 Military) Panel
In the Stovebolt Gallery
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