My 6-71 Blower rebuild, Part 1: Removing the lip from the side of the case. 

Excellent stuff. Sorry that your friend reached the end of the line too soon. Always great to hear about the old days when junkyard parts were plentiful (and cheap) and lots of guys were building hot rods.

@@MakerCave You and your careful precision. Hopefully you will like some of his stories. He and his friends always labeled the race car they put together, calling it "The Other Woman". So where were you tonight,out so late? Well,honey,I spent the evening with the other woman. And being the wild child he was,married though he was,he was always ready to sample some young woman who did not mind being frisky. Wow. So he could look his wife in the eye,and not lie to her. Oof. Being the wild child he was,he got a kick out of welding the rail together,using oxy acetylene and coat hanger wire as filler rod, Back then,in an effort to save weight,it was popular to use the engine block as a stressed member. Front of the rail bolted to the front of the engine, rear bolted to the rear of the engine. Worked fine until the 800 foot explosion. Block blew itself to pieces,engine was in front with his friend the driver sitting pretty much on the pumpkin. Now fortunately (?) the remaining driveshaft stub was short,the U bolts allowed the rear axle case to rotate and only small chunks of the guys inner thighs got torn off. I met this guy back about 1993. Sure enough,he walked a little funny. Still had a smile on his face,no hard feelings to anyone not even the guy who had overdosed the nitro. A very different era. Sure was smart to put the engine and all the other dangerous bits behind the driver. But that was later. Thirty years later he still walked a little funny. With a smile still on his face. And I thought I had a few eventful moments during my younger days. I sure miss my friend. Unquestionably some form of manic depressive who was mostly borderline manic,always up early and doing twice what any normal male would do. And always at a driven pace. He loved to cook. Are you interested in a favorite of his ? Pork roast with sauerkraut? It would be my pleasure to share it with you if interested. Cheers.

See if this link works: s6dc2dc82dd3d959c.jimcontent.com/download/version/1549459688/module/8251750215/name/Detroit%20Diesel%20Engine%20Series%2071%20Service%20Manual.pdf

I recall that the small bore case has two side tabs, and the earlier large bore case has a single long side tab. I am referring to the tab that is milled off in this video. By the way, the case in this video is a small bore. I will try to go down to the shop this weekend to confirm that my memory is correct. Thanks!

@@MakerCave awesome thanks. Its hard to find info on large bore and small bore based on the casting numbers. So any help is awesome. Thanks again

Can you unbolt the front bearing plate, and pull it and the rotors from the case as an assembly? Where are they stuck? Are they stuck in the front bearing plate, or are they stuck in the rear bearing plate? What have you taken apart so far?