Request some help

Ok 2 different shops. First issue from 3/19 post, I was driving on the freeway and the car stopped shifting. I took it to Aamco because I was on work comp and had limited income, they replaced the spring on the valve body side of the transmission, they also for some reason removed the kickdown linkage spring assembly.

I drove the car for a few days, took it back to Aamco told them something was wrong, shifting really high 2nd to 3rd at 55-60mph under casual conditions and was slapping into gear. They said they "adjusted it" 3 weeks later I came back to Aamco again, and told them same issues, spoke with the transmission repair from Aamco, which is when he told me he removed the linkage spring cause it didn't look someone else's car mopar that was in the their shop. I came back again, now 3 moths and 1800 miles later, They told me they weren't equip to fix my problem and that I should take it to another shop. So I saved up some cash, and took it to a friends performance shop, and he said I need to have the transmission rebuilt, so I took it to a different transmission shop , and they pulled the pan where we found the band and part of a clutch sitting in the pan. That shop rebuilt it and added a shift kit, it has been perfect since. I am suing Aamco for failing to perform a proper repair, and for causing increased damage to my transmission by removing the kickdown.

Based on the full description, am I correct in assuming the removal of the kickdown caused my transmission to fail.

Here's what I see. In one place (1st highlighted section) you say they removed the kickdown linkage spring assy. and in another place (2nd highlighted section) you just say they removed the kickdown. Which is it? Also by the description of how it shifted at real high shift points is not indicative of a kickdown linkage that was removed, just mal-adjusted or a spring missing. And it's in the direction of adding more pressure, not less such as no linkage at all or adjusted too loose. What happens is if the linkage is removed or adjusted so that it doesn't apply enough throttle pressure is it lowers hydraulic pressure to the clutch packs and band servo's allowing them to slip. The shift points also come in at a lower speed because the linkage from the carb to the trans. does 2 jobs, regulates clutch pack and band servo pressure and works in conjunction with the governor to make the trans. shift at the right speed. If all they did was remove the spring which increased the shift points I highly doubt they are the cause of the failure.

IMO the company that did the recent rebuild are the best ones to say what happened because they saw it as it came from Aamco. If Aamco had something screwed, such as linkage removed, they can write it up in your best interest. I used to write work orders when I worked for Hyster and a few times I went in after someone else to fix something they screwed up and when I wrote the work order up I said what they did wrong so the customer had leverage against the other company.

What did the company that just rebuilt it say happened?