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Vette Servo/what Does It Do

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brandon_guzzo Enthusiast

brandon_guzzo

Posted
Posted

It will firm up the first to second gear shift. it will also quicken the shift. the servo helps to prolong the life of the 2nd gear clutchpack. (This is a response to a similar question off of a different forum) :cool:

brims Senior Enthusiast

brims

Posted
Posted

Doesn't really quicken the shift as the TCM still controls the time it takes to perform the shift.

 

Also, this has been discussed many times already.

jblakeney Senior Enthusiast

jblakeney

Posted
Posted
Its about 25 bucks and 30 minutes, certainly worth doing.

 

Providing you install it correctly and you do not have the lock ring jump out and the thing break the case..... I have seen a couple that did this.... And I think I read about one on here that it happened tooooo

 

Jbo

jblakeney Senior Enthusiast

jblakeney

Posted
Posted
Heres a question I havent seen about a Vette Servo...

 

 

Why doesn't it come stock?

 

Shifts are quite firmer...... Most people want the smooth shift. Plus it is tougher on internals in the transmission (hard parts that is).

 

Jbo

livetohunt Enthusiast

livetohunt

Posted
Posted

I installed one in my truck 2 weeks ago. Now, instead of the slow, lethargic shifting, I have firmer 1-2 & 2-3 shifts. Its definately not as hard or firm shifting as the shift kits we used to install years ago. Its just a firmer, snappier shift. I am more than happier with how the truck shifts now, especially when you "get on it" a little.

Z'06 Enthusiast

Z'06

Posted
Posted
Heres a question I havent seen about a Vette Servo...

 

 

Why doesn't it come stock?

 

Shifts are quite firmer...... Most people want the smooth shift. Plus it is tougher on internals in the transmission (hard parts that is).

 

Jbo

 

 

There's no way that the relatively mild Vette servo is too tough on the internals, especially compared to the harmful soccer mom shifts without it. There are much firmer shifts available with larger-surface-area billet servos (Superior Fairbanks comes to mind as the firmest servo available, with Sonnax being in between the Vette servo and Superior Fairbanks). The Superior Fairbanks servo would be too tough on the internals of a stock transmission.

 

Consider the possibility that GM is doing its dealership network a favor by designing the transmissions in a manner that guarantees service and parts revenue down the road, given that GM itself (and NOT its dealer network) makes virtually all of the profit margin from a new car sale. This gives GM's dealership network something in return for slim profit margins on the sales new vehicles.

music Senior Enthusiast

music

Posted
Posted
Consider the possibility that GM is doing its dealership network a favor by designing the transmissions in a manner that guarantees service and parts revenue down the road, given that GM itself (and NOT its dealer network) makes virtually all of the profit margin from a new car sale. This gives GM's dealership network something in return for slim profit margins on the sales new vehicles.

 

I seriously doubt it, especially considering that GM now pays for the repairs up to 5 yrs/100k miles. The stock design is chosen to match the overall design characteristics that they want, which almost certainly includes "smooth shifts". For most folks, that means not noticing it shifting.

 

Tow/haul mode bumps up the line pressure, effectively giving the same effect as the larger servo. So, the question I have is whether the tow/haul pressures are too high to be used w/ the vette servo, or if they play well together under full load (i.e., at the chassis tow limit)?

Z'06 Enthusiast

Z'06

Posted
Posted
Consider the possibility that GM is doing its dealership network a favor by designing the transmissions in a manner that guarantees service and parts revenue down the road, given that GM itself (and NOT its dealer network) makes virtually all of the profit margin from a new car sale. This gives GM's dealership network something in return for slim profit margins on the sales new vehicles.

 

I seriously doubt it, especially considering that GM now pays for the repairs up to 5 yrs/100k miles.

 

 

That's why I said "down the road." It's a deferred benefit to the dealership network. The transmission is built well enough for most to make it through the 5 yrs./100K miles mark.

jblakeney Senior Enthusiast

jblakeney

Posted
Posted
Heres a question I havent seen about a Vette Servo...

 

 

Why doesn't it come stock?

 

Shifts are quite firmer...... Most people want the smooth shift. Plus it is tougher on internals in the transmission (hard parts that is).

 

Jbo

 

 

There's no way that the relatively mild Vette servo is too tough on the internals, especially compared to the harmful soccer mom shifts without it. There are much firmer shifts available with larger-surface-area billet servos (Superior Fairbanks comes to mind as the firmest servo available, with Sonnax being in between the Vette servo and Superior Fairbanks). The Superior Fairbanks servo would be too tough on the internals of a stock transmission.

 

Consider the possibility that GM is doing its dealership network a favor by designing the transmissions in a manner that guarantees service and parts revenue down the road, given that GM itself (and NOT its dealer network) makes virtually all of the profit margin from a new car sale. This gives GM's dealership network something in return for slim profit margins on the sales new vehicles.

 

 

Why do they have different ones?....... It cost more to have more part numbers!

 

just my opinion...... Take it as is.... and flame me.

Jbo

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