HRSEPLA
Well-Known Member
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Time from some Transmission work: (4,000 miles and 25 track passes)
At the end of the 2018 season I have some transmission 'flares' I'll call them, between 5-6th gears (maybe it was 6-7th). I didn't think it was 'slipping' honestly because there was no load or normal trans slip, just a blatantly loose, free rev between the gears and then a very hard, abrupt, shocking engagement into the next gear right after. We suspected the valve body but still unsure if it plays a part yet. This problem could not be tuned around, Lund tried but it must be something mechanical....
This only happened under normal driving leaving a stoplight. Under full throttle it 'seemed' to perform OK at the track but Jon Lund said he could see slip in the logs and we worked together trying to chase his target shift point to actually get it to shift close to those rpms.
It started as an occasional acceleration flare but by the end of the year it was happening leaving every stoplight.
I spoke to a few people about the A10 and decided to ship it down and have Brett LaSala go through it and install the McLeod clutches.
https://www.msr-nogmparts.com/
Once I pulled the converter I noticed that there was some visible contact in the snout (pictured) A call to Circle D (and Jon) said that they are seeing this happen (like on the 6R80's) and offer a Bronze Bushing now and are also working on a bearing setup in the near future. I shipped it to them for the bushing along with the Billet Stator / stall upgrade. (fyi - I explained that it was time sensitive and April 12 was to be the completion date.)
That's what I have for now, how’s everybody else’s trannys holding up? Sam
***UPDATE 5/6/19 - A new Ford Valvebody fixed the shifting flares/rpm spikes in between my 5th & 6th gears.***
At the end of the 2018 season I have some transmission 'flares' I'll call them, between 5-6th gears (maybe it was 6-7th). I didn't think it was 'slipping' honestly because there was no load or normal trans slip, just a blatantly loose, free rev between the gears and then a very hard, abrupt, shocking engagement into the next gear right after. We suspected the valve body but still unsure if it plays a part yet. This problem could not be tuned around, Lund tried but it must be something mechanical....
This only happened under normal driving leaving a stoplight. Under full throttle it 'seemed' to perform OK at the track but Jon Lund said he could see slip in the logs and we worked together trying to chase his target shift point to actually get it to shift close to those rpms.
It started as an occasional acceleration flare but by the end of the year it was happening leaving every stoplight.
I spoke to a few people about the A10 and decided to ship it down and have Brett LaSala go through it and install the McLeod clutches.
https://www.msr-nogmparts.com/
Once I pulled the converter I noticed that there was some visible contact in the snout (pictured) A call to Circle D (and Jon) said that they are seeing this happen (like on the 6R80's) and offer a Bronze Bushing now and are also working on a bearing setup in the near future. I shipped it to them for the bushing along with the Billet Stator / stall upgrade. (fyi - I explained that it was time sensitive and April 12 was to be the completion date.)
That's what I have for now, how’s everybody else’s trannys holding up? Sam
***UPDATE 5/6/19 - A new Ford Valvebody fixed the shifting flares/rpm spikes in between my 5th & 6th gears.***
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