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I don't know the correct answer for your setup but my 6L80 was having a very noticeable momentary bind after the initial 2-3 shift until I disabled the clutch air purge. I have a Sonnax Zip Kit and...

From their website:

https://www.sonnax.com/parts/4685-high-capacity-4-5-6-clutch-apply-piston-kit

128997

"By eliminating the OE waved plate and adding one additional OE-thickness friction,...

Reverse before driving makes no difference. It is definitely not a flare. Gears Magazine had an article that describes this condition. They added extra clearance to remedy the problem. Since I have...

I have a L96/6L80 combo in a JKU. I rebuilt the transmission and installed a Sonnax Zip Kit and their updated 4-5-6 clutch which eliminates the wave plate and adds an extra friction. All clearances...

I have an aftermarket harness and am using the GM Truck Pedal 25832864. The Camaro pedal is 22741799 but if it is used, terminals D and F will need to be swapped in the connector. My engine was a...

Finally it is fixed. I am only a beginner tuner and could not tune out the cold idle surge on my L96 JKU swap. I was running a cheap Chinese open element air filter and aluminum intake tube kit. I...

I hope someone can point you in the correct direction. My L96 swapped JKU does the exact thing and I can't figure it out. My buggy with a stroked, cammed, LQ4 with LS3 heads that has been...

Same here. The TCM was bad in my 2011 6L80 so I replaced it with a new GM part a few days ago. I tried the normal write first and the TCM would not communicate. I then did the full write and it is...

I used an LS3 intake on my stroked 6.0 in my buggy and overlooked a vacuum nipple that is hidden by the alternator near the throttle body. I had it dyno tuned and found the leak afterwards which...

Hello everyone, my name is Perry. I have worked in an emissions testing dyno lab for the last 30+ years and building cars and trucks on the side. I recently bought HP Tuners for my latest build which...