Quote:
Originally Posted by picklito
Is there a way to make the torque converter clutch engage more firmly?
|
A Sonnax TCC regulator valve with the (.300 OD spring) will firm up lock-up.
http://www.sonnax.com/parts/2025-tcc...1-instructions
Quote:
Originally Posted by picklito
Your chart came through well. Thanks. Some stock data if it's helpful:
2003 Yukon XL 2500 8.1/4L85E/4.1
1-2: .070"
2-3: .075"
3-4: .050"
The holes are so much smaller than I expected, I'm not quite sure what to do. Might just use your recommended .085/.093/.085.
|
I don't know how you want the shift feel, "Feel" being very subjective!
Here are largest holes I would recommend. Your truck is pretty heavy & can absorb a lot of shift energy. And you seem to want the shifts to be noticeably firmer.
2nd: .093"
3rd: .101"
4th: .093"