Shift Kit/Servo Difference?

[agreif]

I know I have freaking asked this before but can't find the thread anywhere. Can someone explain to me what the difference between the shift kit and the servo is and what changes with each of them. I understand the servo to be just a bigger "plate" for tranny fluid to pres on, giving firmer shifts? I thought that's what the shift kit does. how does either beef up the trans and keep it from going out earlier?

Thanks,
Andrew

[Hit Man X]

Originally posted by agreif@Jan 14 2004, 12:46 PM
I know I have freaking asked this before but can't find the thread anywhere. Can someone explain to me what the difference between the shift kit and the servo is and what changes with each of them. I understand the servo to be just a bigger "plate" for tranny fluid to pres on, giving firmer shifts? I thought that's what the shift kit does. how does either beef up the trans and keep it from going out earlier?

Thanks,
Andrew

Servos increase load capacity on the 2-4 band and make better down shifts.

TransGo kit rebuilds the valve body. Swaps out a few springs, grind the manual valve a bit, a boost valve, etc. I'd do the TransGo vs the servos...but the ultimate is both. The TransGo will make the trans perform better and last longer but fixing GM's shortcomings. Also the TransGo includes drill bits to slightly increase the oil feed holes for the clutch packs. Don't go crazy with these holes....stick to the instructions. I'd go with the slightly larger bit for the 3-4 pack...the instructions stipulate what to drill, where, and how large.

[agreif]

So the greater area on the servo allows the downshifts to happen more quicly then? It doesn't really beef anything up, just allows a greater force?

TransGo kit puts in beefier components or what? What makes it last longer, what is prone to wear out faster in the stock internals that the Transgo replaces? So the Transgo won't affect performance but will allow the tranny to last longer?

[Hit Man X]

Originally posted by agreif@Jan 14 2004, 06:57 PM
So the greater area on the servo allows the downshifts to happen more quicly then? It doesn't really beef anything up, just allows a greater force?

TransGo kit puts in beefier components or what? What makes it last longer, what is prone to wear out faster in the stock internals that the Transgo replaces? So the Transgo won't affect performance but will allow the tranny to last longer?

Yes the billet servos have a larger apply are for the 2-4 band. More apply = better shift. Up and down shifts are better with it. These pieces are more beefy than the stock GM ones. They hold the band better so I'd say they increase durabilty.

The TransGo just makes the valve body work better. It's hard to explain indepth. It's like Allens tunes...he fixes all the crap GM puts in there. The TransGo does the same thing. Heavier springs all for firmer shifts, more fluid flow allows for less chance of a toasted trans, firmer shifts decrease shift time thus cutting back on heat build up hence longer lasting.

The TG greatly helps the 3-4 pack that is prone to burnup. The .500" boost valve increases internal pressure for more constant supply of ATF to the internals. Um, I'd think you'd gain maybe a .1 (that's very optimiistic) with it due to faster shifts but just the streetability and cleaner shifts make it worth it. Positive up and down shifts are a BIG plus to me.