Thanks quickt. I went ahead and ordered a Sonnax this morning and will give it a try.
FYI - my reference to 400 is my engine size.
Great info on this site! Keep m fast!
Thanks Bison - I love the overdrive. I just need more traction and to loose the driveline bang when stopping. What would be a good servo to run in my street driven 400?
I just installed a 200-4r in my 67 Pontiac and I'm getting a harsh driveline bang when stopping with the superior servo. Can I install a cushion spring with this servo or do I need to get a sonnax or one from ck?
Great info on this site and thanks in advance for any help on the superior servo...