What are the differences between these transmissions?

[dikidera]

I'll have to write a TC logger. My canbus is already spammed enough haha. What do you think of Lubeguard instant shudder fix?

I can't be certain of the shudder in 5th gear, I really can't, but 3rd gear (shifter in position marked '3') in specific RPM/speed oh yeah definitely.

Bummer abount sonnax, but let's not forget that bores in valvebody can and do wear out. Once out of spec, nothing will be correct. New is new, but also expensive.

[vtl]

I use Lubegard HFM to prolong ATF life and reduce stress on frictions. Volvo likes its transmissions to slip for a bit of extra comfort.

Sonnax re-bores valve bodies and uses bigger plungers with O-rings to seal better. However they don't re-bore everything, so Sonnax VB is still not new. It is also labor intensive and costs a lot in US where labor is very expensive. Can not match GM VB price or around $500, not at all.

[dikidera]

The valve body is over $800 here brand new. Brand new TC over $1000 for sure.

[vtl]

TC usually can be rebuilt. Our domestic (US) rebuilders say Aisin torque converters are not the best, they rebuild them to a higher standard.

[dikidera]

No such quality control over here. A $300 tc rebuild will be just as the price sounds. Cheapest parts.

[vtl]

Heck, you have a lot of business opportunities ahead of you Here a rebuild was $180, with an expensive US labor and premium parts.