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  1. Harmon4127

    Torque converter selection

    Goerend hands down best converter and customer service
  2. Harmon4127

    Allison 5sp: 1/4" checkball in accumulator cup

    Yeah I have lots of time vested also just into multiple transmissions not nearly as much as you on the Allison. I'm going to put some more miles on it Monday. It got a set of your trim springs and ratiotek springs.A lot got changed from the setup it had. Been a long while since I had to drive...
  3. Harmon4127

    Allison 5sp: 1/4" checkball in accumulator cup

    Mike that 03 5spd truck that had the check balls in the accumulator got it back in with a P2 planet from Dave and updated it to a gen 4 drum. Shifts great 3-4 shift is a little softer then I like and has a slight flair at certain throttle openings. I wasn't able to fast learn this one with my...
  4. Harmon4127

    Allison 5sp: 1/4" checkball in accumulator cup

    Funny you say that. Between that and the Transgo mod done to the drum with extra frictions exactly the failure here.
  5. Harmon4127

    Allison 5sp: 1/4" checkball in accumulator cup

    Has anyone ever seen a 1/4" checkball installed in the accumulator cups on a 5spd Allison? I have never seen this they dropped the balls inside the cup and then the springs?
  6. Harmon4127

    New High Capacity trim springs

    I would like to thank mike for taking the time in going up and beyond with the trim springs and shift valve springs. I had mike send me 5 sets and I have installed them in trucks with just a tgo jr kit, ats Trans,suncoast Trans and a few that I have built lately. All with a nice change in shift...
  7. Harmon4127

    New high capacity trim valve springs

    Mike I can carry them in the Midwest for u ship out and install. Let me know Sent from my iPhone using Tapatalk Owner operator @ Harmon performance Trans Outside sales wit transmission parts.
  8. Harmon4127

    New high capacity trim valve springs

    Mike I do a lot of Allison builds, how do these springs work with the Ratiotek PR spring? Or PR spring and shim? I'm assuming these springs only fit the 01-10. I would like to buy few sets I will give u a call Friday. Thank you for your time.
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