i have the vette servo in my daily... i have no complaints... much better than stock

 

Corvette servo can be had for $20-30. Sonnax 2nd servo is around $100, and is just slightly more firm than the vette servo. It does have a lot more sealing rings than the vette servo for better long-term sealing, but I don't think there's any real tangible benefit in this regard.

I'd get the corvette servo FWIW.

The sonnax 4th servo is a dual piston servo, they do this to increase the apply area beyond what the stock housing bore and cover can achieve (the superior 4th servo uses a single piston design and IMO isn't worth the money). It'll firm up the 3-4 shift only, and with a more stiff return spring the 4-3 shift will be a little faster. You can also keep the factory 4th servo and block/disable the 4th accumulator for a firmer 3-4 shift. It doesn't have near the effect of blocking the 1-2 accumulator for the 1-2 shift... the 3-4 with blocked accumulator and stock 4th servo actually feels pretty good. Pretty close to the 1-2 with the corvette servo.

 

I have a sonnax 2nd and I love it

 

get the vette servo it's worth it i wouldn't get the billet one unless you actaully are going to need it to withstand ALOT. you can get them off ebay for around 16 bucks shipped.

 

have the vetto servo and it made a differance, and I only spent 50 bucks, I would not spend 100 dollars for something that is just a little bit more. I personally thingk the corvette one is fine for everyone.

 

When it comes to transmissions, I would go with whatever Vince B says.

 

True dat!

 

Word, he built mine and it's awesome