1966 chevelle

Hi! I wonder if you can help?Would a disc brake spindle from a 1983 pontiac lemans fit in a 66 chevelle for a disc brake conversion?

no. you can take spinkdles off of any A body up till 72. after than, there are spindles that you can use, but they are taller and require an unsafe amout of shims or the use of aftermarket tubular uper control arms costing around $400 each or so.

by the way, welcome to the forums.