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  1. Mark Barnes

    Yet another 8-3/4 setup question. 3.73

    Motive Gear set. The pinion bearing sat all the way flush because it's got a matching radius. BTW, thanks for your earlier post. The excellent info you provided was just what I needed. You and DVW convinced me that I was doing it at least halfway right. Now if it holds up!
  2. Mark Barnes

    Yet another 8-3/4 setup question. 3.73

    Running it. Dicked around too long already.
  3. Mark Barnes

    Yet another 8-3/4 setup question. 3.73

    Die grinder with a polishing roll. Goes pretty quick.
  4. Mark Barnes

    Yet another 8-3/4 setup question. 3.73

    Well, after the helpful responses, this is where I ended up. Zero shims under the inner pinion bearing. Guess I'm gonna have to accept this, I'm all out of adjustment options. This is with 30 in/lbs. of pinion preload and .008 backlash. Any other suggestions (other than pay someone...already got...
  5. Mark Barnes

    Yet another 8-3/4 setup question. 3.73

    OK, thanks. I have another question though- I have already removed the original beveled shim from under the inner pinion bearing and replaced it with a couple from the gear kit that are slightly thinner. Is that kosher? Starting to make me a little nervous. It seems like I'm getting the pattern...
  6. Mark Barnes

    Yet another 8-3/4 setup question. 3.73

    First time I've tried setting up my own gear. Last time I paid a guy to set my 3.91 up...sounded like a freight train coming, drove it from my kids house to mine and sheared 6-7 teeth off the ring gear. When I pulled it, the pinion had about 1/4" of end play. So here I am, schlepping and...
  7. Mark Barnes

    741 yoke, 10 spline vs. 29 spline

    Thanks Fran! That was my next question. Bought the Dr. Diff yoke too. Thanks to everyone!
  8. Mark Barnes

    741 yoke, 10 spline vs. 29 spline

    Numbers on strap are "0 28 78". Measurement is 2-1/8".
  9. Mark Barnes

    741 yoke, 10 spline vs. 29 spline

    Ordered (online) a new 3.73 ring and pinion for my 741 case. Opened it up and found a 29 spline pinion, opposite of the existing10 spline yoke I was planning on using. New pinion has 7/8" thread and larger lock nut than the 10 spline. The question is, can I get a 29 spline yoke that uses the...
  10. Mark Barnes

    Safe Manual Shifting a 727

    Drive it like your buddy paid for it...
  11. Mark Barnes

    A727 Torqueflite Shift Points?

    Here's the update- finally got around to adding a return spring to the kickdown lever. Didn't realize that that there was about 1-1/2" of travel to the front of the trans that doesn't get taken up without a spring. Fired it up and drove it, and surprise! It shifted at the expected rpm's...
  12. Mark Barnes

    75 lbs. oil pressure to ZERO in 10 seconds. WTF?

    My mistake, I meant the dipstick TUBE. Couldn't get it to go in the last 1/4".
  13. Mark Barnes

    75 lbs. oil pressure to ZERO in 10 seconds. WTF?

    Stock dipstick that wouldn't go in the last 1/4". 6qt. pan and matching pickup, so if the oil is to the full line, it's probably a little OVER full.
  14. Mark Barnes

    A727 Torqueflite Shift Points?

    Thanks, gonna try it. I'll let you know.
  15. Mark Barnes

    A727 Torqueflite Shift Points?

    My valve body has a Transgo TF2 shift kit installed, with the appropriate holes drilled. Second one I've done, and first time I've had any issues. I set up the cables in a number of different configurations, and still shifting late into 3rd, and only when I let off the accellerator. I'd be happy...
  16. Mark Barnes

    A727 Torqueflite Shift Points?

    I have a brand new rebuilt 727 with the exact same 2-3 shift issues. 1-2 shifts as expected, 2-3 shifts late and only when Iet off the accelerator. Also using a cable setup for kickdown. Waiting to hear the fix for this one!!
  17. Mark Barnes

    75 lbs. oil pressure to ZERO in 10 seconds. WTF?

    Yep, only lost pressure once. I did polish the valve, but it didn't really need it. I just got done driving it around. 35lb. at idle 75lb. running. Guess I'll just watch it close from now on. No idea what happened, but I know I'm guessing it sucked air somehow.
  18. Mark Barnes

    75 lbs. oil pressure to ZERO in 10 seconds. WTF?

    Well, I did the oil change this morning with a new filter, stuck the priming rod down there and spun it. Took about 5-10 seconds and was making 75lbs. of pressure. I can't figure it out. Is it possible that when I leaned on the brakes the oil sloshed forward and the pickup sucked air? I have no...
  19. Mark Barnes

    75 lbs. oil pressure to ZERO in 10 seconds. WTF?

    I hate this idea, but that is something I never considered. Thanks!
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