It should be much easier with the sheet metal off. There are step-by-step instructions here:

http://chevy.oldcarmanualproject.com/shop/1948_51truck/index.htm

To me, the tricky part is connecting the hoist to the engine. The manual recommends connecting a chain to two headbolts. This works but I think there are probably better ways. Also, I think an engine leveller is critical.

1952 Canadian GMC Pickup Truck

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