Corvette Servo

[ediDJ13]

I want to do the Corvette Trans. Module mod on my 04 Tahoe 4WD. Does anyone know the part numbers I need to get it all from my local Chevy dealer or Auto parts store? I looked up the module on line and see that it isn't very expensive, not enough for me to pay shipping if I could just get it locally.


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[ezdaar]

http://www.oregonperformancetransmi...&Category_Code=4L60E&Product_Code=NTP-K51828C

 

[NathanJax]

http://www.oregonperformancetransmi...&Category_Code=4L60E&Product_Code=NTP-K51828C

yup

 

[ediDJ13]

Ok. So I take it that this part is only available online and at this store...


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[NathanJax]

Ok. So I take it that this part is only available online and at this store...


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No. You can go to Napa or Advance Auto Parts and get it as well, but it won't be as cheap

 

[ediDJ13]

So, what details do I give to Napa or Advance Auto to get the right Corvette Servo?


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[NathanJax]

So, what details do I give to Napa or Advance Auto to get the right Corvette Servo?


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ask for a Corvette servo for a 700r4/4l60e. I'm trying to find an actual part number now for you. But it's the same servo from any 1982 and up 700r4/4l60e.

 

[ediDJ13]

I appreciate your help!! I can't wait to see the improvement this mod does.


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[hoss08]

My vette servo has part# A74905BK on the package.

 

[notboating]

How do I determine which transmission I have and what is the benefit of this mod?

 

[NathanJax]

How do I determine which transmission I have and what is the benefit of this mod?

If you have an SUV, you will benefit from the mod

 

[TheAutumnWind]

How do I determine which transmission I have and what is the benefit of this mod?

http://www.gmfullsize.com/forum/showthread.php?t=98029

First off, let's answer some of the questions always asked...

Q: What benefit does a Corvette Servo give you?
A: You'll get firmer, faster shifting, and about 50% more holding power in second gear, which is where the 700R4 or 4L60E transmission really lacks in quality.

Q: How much money are we looking at?
A: I bought mine on eBay, from Oregon Perfomance Transmission. $32.50 shipped to my door in 3 days. These guys are fast, and have great customer service.

Q: Can I do it myself?
A: Can you work a screwdriver and a C-Clamp? If so, then yes. If you can change your oil or brakes, you can do this.

Q: What tools will I need?
A: A few flathead screwdrivers (small and medium), a prybar, a drip pan, C-clamp, 10mm socket and ratchet, and a few rags.

Ok, enough Q&A... let's get this thing done.

I plan to do this when I get around to servicing (flush and new filter) the trans.

Any other accompanying mods that I should know about?

 

[ezdaar]

What year and model do you drive

 

[ediDJ13]

I have 2004 Tahoe 4WD LT...


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[4WDTRK]

Not to jack the thread, but I already had the Sonnax boost valve installed a while back which is supposed to help with line pressure. Not sure why I didn't do the vette servo at the same time. Any problem running both?

---------- Post added at 03:28 PM ---------- Previous post was at 03:12 PM ----------

Answered my own question by calling my trans shop. He explained swapping to the vette servo would be overkill since I already have the boost valve. It will probably shift too hard. He also explained the boost valve is the better choice of two because it increases line pressure throughout the shift range, whereas the vette servo only affect 2 and 4. Just FYI.

 

[ezdaar]

I have 2004 Tahoe 4WD LT...


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It will fit. buy and install it.

 

[TheAutumnWind]

Nevermind.


Thread jacking.

 

[ediDJ13]

Not to jack the thread, but I already had the Sonnax boost valve installed a while back which is supposed to help with line pressure. Not sure why I didn't do the vette servo at the same time. Any problem running both?

---------- Post added at 03:28 PM ---------- Previous post was at 03:12 PM ----------

Answered my own question by calling my trans shop. He explained swapping to the vette servo would be overkill since I already have the boost valve. It will probably shift too hard. He also explained the boost valve is the better choice of two because it increases line pressure throughout the shift range, whereas the vette servo only affect 2 and 4. Just FYI.

What it this " Sonnax Boost Valve" you speak of??


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[Denalixl364]

How much work is this to change?

 

[NathanJax]

How much work is this to change?

10 min at most... On a lift and if you know what you're doing. If you mess it up though, you're tranny won't shift in to gears