63 c10, LS swap, motor mount question..HELP

[ssupraman63]

I have a 63 c10, I have switched the complete front suspension ,brakes, engine cradle,from a mid 80s c10, the parts you see in the pics, bolt from the 63 frame down to the mid 80s cradle, then the clam shell mounts to them, and so on, my problem here is that these pieces that are off of the newer c10 are too long now, what is everyone with this set up doing? Any help would be appreciated.