Transgo hd-2 and sonnax pinless accumulator pistons???
 

read that these won't work together. anyone else seen this? thanks!

Will work together just use factory accumulator springs, gettin ready to do this to mine as well, still debating on transgo 4l60e-hd2 or full sonnax performance pack or mixing the two.... The transgo springs are too short for the pinless accumulators

Everything in the Sonnax performance pack is similar or stronger.

I haven't used any of the parts except the springs for the 3-4 and forward clutch from the HD2 kit. 7CS I believe is the part number. Oh and the Rings for the Pump But that's it.

I haven't gone in the Valve body yet though...