[made2drag]

Took this stripped plug out, drained the pumpkin, cleaned it some, counted teeth and cross referenced stampings and found this 10 bolt 8.5 has a 2.73 gear ratio which is what I was hoping for! 41 on ring and 15 on pinion....It came out of an 85 c10 and with a 2.73 and a th400 I shouldn't be turning high rpm's at 60 mph even with it being non-overdrive. My 86 feels great with a 3.42 so im looking forward to even higher highway gears...LOL