63 Rearend Gears
- Thread starter Kaycee
- Start date
I don't think the truck rear end is the same as the passenger car. So my answer would be no. Ask anyone here, if I'm wrong it would absolutely be the very first time, lol.
Not even close
The truck axles are held in with C clips I think. The passenger car as we know are held in with a retainer at the backing plate. (See I knew I was right). 
Not the same
Axle spline count is also different from passenger car, it's not gonna work. Anyway, stock car rears don't have 10 bolts on the cover, heck! They don't even have covers. I think the lowest numerical gears for the truck that year were 3.38.
Thanks for the help
I think the truck rears in 59 looked the same as a car rear from behind, I think they we're drop out pigs too. If his has a cover maybe someone changed it to a late model rear end. Wait, I'm contradicting myself, you can't have C clip axles and a drop out pig. I think we need someone other than me to explain this 
I know the pictures I've seen of the '57 Black Widow cars were said to have rearends pulled from new trucks. They have a rear cover. Not sure what all else is different about the rearends, but if the chunks interchanged then I don't see why Chevy would have swapped in the whole rears.
Someone had downloaded the Black Widow conversion manual on line many years ago and I remember reading about using the 6 lug front truck hubs. Had all the info needed for the roll cage mounting and gas tank straps, etc. I'll see if I can find it.
Last edited:
This article mentions the truck rear end and front hubs. http://nwccc.net/oldsite/News_events/blackwidow.pdf
I found the competition guide for the conversions. http://www.macsmotorcitygarage.com/2013/10/22/the-1957-chevrolet-stock-car-competition-guide/
