Thrust Plate Needed

[SJohn89715@xxxxxxx]

My ring gear on my 1968 390 engine, automatic transmission flex plate (aka flywheel) has 4 consecutive mashed teeth. As a result, every once and a while (invariably at car shows) the starter hits this spot and I get that horrible grating sound. I have a replacement ring gear, but was wondering if it is better to wait and find the correct whole used unit, or have the new ring gear welded on to my current one.  I know that these units are negatively balanced to the crankshaft assembly, and are are not interchangeable with other years, engine sizes, trannies, etc.  If better to replace with a whole used unit, does anyone out there have one for sale?  Thanks.

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