4L60E 1-2 Accumulator - Pinless Piston Installation - Inner Spring Purpose?
Having installed a handful of B&M valve body shift kits since the mid 70's, and figuring it's going to take more than a "key punch" activity to get my 4L60E to shift when I want it to... I've looked to Transgo and Sonnax both for mechanical / hydraulic solutions. My question? What's the point of using the second "inside" yellow spring? Once the wider pinless piston bottoms out in the housing, that stronger yellow spring barely contacts the compressed piston. All that spring to absorb .015" of travel after contact at max travel? Just curious if anyone has had a similar observation with the pinless Sonnax part. I can't buy into the distorted flattened yellow spring phenomenon when the OEM piston (by the virtue of its thinner casting) travels much farther into the cylinder than the Sonnax part. In other words... the Sonnax pinless piston skirt bottoms out in the cylinder bore and renders the yellow spring practically useless. Anyone have experience with this issue or have a link to deeper reading? I've pecked this keyboard to death keyword searching for an answer, so I'm trying here.