I have an old Ferguson cultivator. Great size, it's a shade over 7' long. I only use it work up my ropin pen. I have lost/broken enough of the spring tines over the years, that it's rendered it pretty much useless. It's got 11 brackets, with heavy U bolts in it, where the tines should slide in. In the absence of replacement tines, would a large 18" piece of rebar suffice for my needs? I know they wouldn't have any angle on them, but would they tear the ground enough to meet my needs? I havent measured the holes the rebar would slide in, but it looks to be slightly over an inch. Maybe as big as an inch and 3/8 IDK. I always pull a heavy drag behind the cultivator.