I was wondering about the half shafts bolting up to the differential flange. I'm going to keep the stock 16 inch wheels so it seems the biggest benefit for me is the dual piston calipers and about 1/2 inch bigger rotor. Thanks for the info.
Thanks for info. I was concerned with the tie rod angle changing and causing bump steer. Did the NBS axle shafts bolt in without any modifications? How is the brake pedal feel compared to the OBS master cylinder and brake setup?
With your time constraint, have you considered getting another transmission and building it? You can't tell what may not be reusable until you tear the transmission apart. If you build the other transmission first it will let you build it at your own pace. Once you have the other transmission...
The Sonnax servo has a bigger piston to apply the band in 4th gear. Here is link about the Z-pack http://ls1tech.com/forums/automatic-transmission/338618-raybestos-z-pak-3-4-clutches-opinions.html. I used to switch different thickness steels, frictions and pressure plates to add extra clutches...
There is a stronger sun shell and more clutches in the 3/4 clutch pack. The corvette servo will firm up the 1/2 shift. With the wide band and corvette servo the 1-2 shift may be to harsh for your needs. Are you planning on rebuilding it yourself?
I'll have to look on my 99 Yukon, but I do believe there is a solenoid next to the accumulator that controls the valve that cuts off the flow to the heater core when the AC is on.
I believe there is a plastic vacuum line that runs across the intake in front of the throttle body that goes to the firewall next to the AC accumulator.
Here is a link to Advance for the Heavy Duty radiator http://shop.advanceautoparts.com/p/carquest-or-toughone-radiator-431334/19920074-P?navigationPath=L1*14922%7CL2*15022%7CL3*15952