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Corvette Servo 700R4 4L60E 4L65E 4L70E 4L75E 700-R4 4L60 Automatic Transmission 2nd Gear HP Piston

OPT Product Code: NTP-K51828C

(5) 39 Reviews

$24.99
Corvette Servo 700R4 4L60E 4L65E 4L70E 4L75E 700-R4 4L60 Automatic Transmission 2nd Gear HP Piston

Product Details


New USA made Corvette servo piston kit for the GM 700R4, 4L60, 4L60E, 4L65E, 4L70E, 4L75E THM700-R4 MD8

This servo is a must for any performance, towing, RV, or off-road transmission, but would be a nice upgrade for any 700-R4 or 4L60E.

Right away you'll notice faster and firmer 1-2 shifts and even slightly better 2-3.

This servo will give your transmission 50% more apply pressure, just what you need to keep from burning your transmission up under heavy load situations.

For the price, the Corvette servo is the best upgrade you can make to your 700R4, 4L60E, 4L65E, or 4L70E automatic transmission. Installing this servo in lower mileage vehicles can add years to your transmission’s life. Higher mile transmissions can also benefit and help to postpone a costly rebuild.

This servo is easy to install and can be done with the transmission in the vehicle.

The recommended servo travel is 1/16”-1/8”. Getting your servo within this travel range can make the shifts even quicker and add more miles and years to your transmission’s life. The long servo pin option on this item can help to get this travel within the correct range. We are finding that when using the billet overdrive servo in conjunction with the corvette servo, this correct travel range is crucial. Any travel over 1/8” can create a situation of no overdrive.

The kit comes with all of the necessary seals for installation including the outer cover o-ring.

This servo works in all makes of this transmission. GM, Cadillac, Chevrolet, GMC, Pontiac, Oldsmobile, Hummer, Isuzu, Saab, including:

Buick

      • Rainier, 2004-2007
      • Roadmaster, 1994-1996

Cadillac

      • Brougham, 1994-1997
      • Escalade, EXT, ESV 1999-2006
      • Fleetwood, 1994-1997

Chevrolet

      • Astro Van, 1993-2005
      • Avalanche, 2002-2008
      • Blazer, 1993-2005
      • C1500, some C2500, 1993-1999
      • Camaro, 1994-2002
      • Caprice, 1994-1996
      • Corvette, 1994-2005
      • Impala SS, 1994-1996
      • S10, 1993-2004
      • Silverado Truck, 1999-2013
      • SSR, 2003-2007
      • Suburban, 1993-2013
      • Tahoe, 1993-2013
      • Trailblazer, 2001-2009
      • Van, 1994-2013

GMC

      • Canyon, 2004-2012
      • Colorado, 1994-2012
      • Envoy - XUV – Denali, 2001-2010
      • K1500, Some K2500, 1993-1999
      • Safari Van, 1993-2005
      • Sierra Truck, 1999-2013
      • Sonoma, 1993-2004
      • Van, 1994-2013
      • Yukon, 1993-2013

Hummer

      • H2, 2003-2007
      • H3, 2006-2011

Isuzu

      • Ascender, 2003-2009
      • Hombre, 1996-2000
      • Pickup, I280, I350, I290, I370 2006-2009

Oldsmobile

      • Bravada, 1993-2004

Pontiac

      • Firebird & Trans Am, 1993-2002
      • GTO, 2004-2006

Saab

    • 9-7, 2005-2009

Industry Part Number: K77895

OEM Exchange # 8642079, 8673039, 8647351

These transmissions are part of the Turbo-Hydramatic series and are also known as: 700R4, 4L60, 700-R4, TH700-R4, MD8, THM700R4, THM700-R4, 4L60E, 4L60-E, 4L65E, 4L65-E, 4L70E, 4L70-E, 4L75E, 4L75-E, M30, M32, M70.

The Corvette servo works in all models and years of this transmission, including: 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, and 2013.

Corvette Servo 700R4 4L60E 4L65E 4L70E 4L75E 700-R4 4L60 Automatic Transmission 2nd Gear HP Piston

OPT Product Code: NTP-K51828C

(5) 39 Reviews

$24.99

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5
Corvette Servo
Devon Furderer
06/03/2021
Verified Buyer
Fast shipping and packed nicely. Haven't installed it yet since the truck is in the shop getting the engine rebuilt. Will install as soon as I have the truck back.
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5
Makes a HUGE difference!
Josh
04/03/2021
Verified Buyer
Installing the Corvette Servo really added life to my truck. It now feels confident shifting from 1-2 and 2-3. Even with 35" tires, it gets up and goes. Installation was easy enough, took about an hour. Shipping was also super fast. I would recommend this to everyone who wants positive feedback from their transmission!
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5
Corvette servo
Leland Dean Dennis
03/29/2021
Verified Buyer
I haven't installed yet but im positive ill be impressed. as for my review for Oregon performance i cant say enough good things...fast shipping,quality product,very professional and would highly recommend them to anyone for any transmission needs of any kind. The kind of people you want to do buisness with !!!! 10 stars
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5
Cheapest mod for trans
Clay Miller
12/29/2020
Verified Buyer
Easy install, great performance
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5
Just do it !
Orlando
12/27/2020
Verified Buyer
Great price, easy install. I really appreciate the parts breakdown that was included. I installed this in my 2007 Silverado classic (4L60e) and it immediately improved my 1-2 shift response its a nice crisp shift. Wish i would have done it sooner. Thank you.
1 of 1 customers found this helpful.
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5
Do it! (Corvette Servo (1-2), Long Pin, & Superior Super Servo (3-4 Overdrive
Joe Maddox
12/24/2020
Verified Buyer
Amazing! 285K mi on '01 Suburban 1500 (5.3L, RWD). 1-2 shift was delayed until 3500 RPM, and then 2-3 happened almost immediately. 3-4 had always been soft & barely perceptible. NOW, after installing the Corvette Servo, AC Delco long servo pin, and the Shift Super Servo 4th Apply Piston and cover, the tranny is like new. Shifts are firm and confident but not slammed. At 25% throttle I 1-2 and 2-3 happens before 35 mph and keeps RPMs below 2000. Not measured yet, but am pretty sure I'll see in increase in MPG. 3-4 is noticeable now but again, not slammed. Perfect. Glad I did the whole package. I will likely do this to my son's 99 Silverado, and any other 4L6xE vehicle I own going forward. Love it! Did in an afternoon on a gravel driveway, BTW. Definitely a DIY with a little RTM and "YouTube Certification training". Only ding is that I called OPT for one question, and got sent to VM. Sent the question in via the web, and didn't get an answer until the Tuesday after I installed the parts on Saturday. I guessed the answer well so NP. Here was my Q and the A for someone else's benefit. If you get the whole package like I did, the "SUPER SERVO" "4th Apply Piston & Cover" comes with it's own instructions that say to leave out "spring A" if "this servo is being used along with the "Superior 2nd Gear Super Servo". The "Corvette Servo" that OPT sells that I am reviewing here is NOT the "Superior 2nd Gear Super Servo" so I DID use "spring A". YMMV.
2 of 2 customers found this helpful.
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5
Excellent Transaction
Mike D
11/01/2020
Verified Buyer
Great price, quality parts, and fast shipping very happy customer
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5
Corvette Servo
Ron Basham
10/19/2020
Verified Buyer
This is my second Corvette Servo bought from OPT. Great service and great price and great value. A must have for better trans performance.
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5
Unbelievably worth it
Braden
10/17/2020
Verified Buyer
Second time ordering this part from them. It's the best mod for any vehicle with a 4l60e. Makes it shift so perfect. Firm and tight shifts instead of slow and slippy. Takes about an hour to install yourself. So worth it!
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5
Impressive
Raymond
09/04/2020
Verified Buyer
This day and age it's hard to find a quality item at a great price. But this is.
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5
Best money you can spend on a 4L60e
ddevine
07/29/2020
Verified Buyer
My truck was not as easy as they show on youtube because the tunnel was in the way of removing the part as a unit so it needed to be rebuilt on the truck. Still pretty easy and well worth the results.
2 of 2 customers found this helpful.
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5
Best bang for your buck!
CHRISTIAN S BURNS
07/07/2020
Verified Buyer
Super satisfied with this after a fresh rebuild its seems like a totally different transmission I would recommend this to everyone!
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5
Every Stock Trans Needs This
06/28/2020
Verified Buyer
The kit was complete with the servo parts, as well as a replacement seal for the cover. The kit also came with great paper work showing how to assemble the parts. This kit made my stock 700R4 shift like it should have from factory. No more lazy shifts, with floating overlap. The shifts are quick and firm, while still maintaining comfort. Shifting is not harsh, just firm and quick.
1 of 1 customers found this helpful.
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5
Must have!!!!
Mikey
06/10/2020
Verified Buyer
Fast shipping!!! Awesome quality part best 20 bucks I have spent so far....
2 of 2 customers found this helpful.
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5
Best 20$ mod
David Ethridge
03/15/2020
Verified Buyer
Shipped out fast and best price for a high quality part. I'm rebuilding my trans at the moment and adding the shift kit and this servo. Can't wait to get it back in the truck. Would definitely recommend these guys. 👍
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5
It works!
Patrick
02/20/2020
Verified Buyer
Best $20 I've spent on my silverado classic crew cab. It's not a hard shift. It's an accurate shift. No more sloppy seconds!
2 of 3 customers found this helpful.
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5
Best money spent.
Richard 01/13/2020
01/24/2020
Verified Buyer
Installed the Corvette and OD Super servo and finally my Silverado shifts out like it should. Very noticeable difference. Also I didn't need the longer pin. This is one of the few performance upgrades that I have done that I actually feel was worth the money and it was easy to do.
2 of 2 customers found this helpful.
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5
Best upgrade
Dayn
01/16/2020
Verified Buyer
I did the corvette 2nd and the superior super hold together. I bought the longer pin but ended up not needing it. Shifts way better and just feels better. Amazing customer service and a simple install!!
1 of 1 customers found this helpful.
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5
Money well spent
John
01/08/2020
Verified Buyer
Night and day difference just by the throttle response alone.
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5
Great service great product
Hunter B Brasfield
10/26/2019
Service was great. Answered all my questions. Servo make a shifts firm and quick without any slip. Shipped fast also
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5
Servo
Ken Vail
12/09/2018
Verified Buyer
Service was great all around fast response to questions fast shipping product works exactly as supposed to for a good price! Very happy with the purchase.
2 of 3 customers found this helpful.
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5
Awesome Upgrade!
Austen
11/19/2018
Verified Buyer
I used to have a really sluggish 1-2 shift and I ordered this servo because it was only $20 and I saw everywhere that it fixes it. Boy did it ever. My transmission shifts like it should’ve from the factory! Shipped in exactly the amount of time that was quoted and they had a great price!
3 of 3 customers found this helpful.
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5
Perfect upgrade
Tyler
07/25/2018
Verified Buyer
Installed on my 02 silverado. Works just as described, shifts are firm...no hesitation. Best upgrade for the money!
2 of 2 customers found this helpful.
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5
Great service
Jordan
05/23/2018
Verified Buyer
Fast shipping, corvette servo made shifts much better
3 of 3 customers found this helpful.
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5
Corvette servo
Mike P
05/20/2018
Verified Buyer
If you want better performance, this is a must have product. Also the guys there are great to work with very knowledgeable.
1 of 1 customers found this helpful.
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5
What a difference
Sam
03/17/2018
Verified Buyer
Quick shifts. Makes a big difference for the price.
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5
Corvette servo
Rick T.
03/17/2018
Verified Buyer
Tight'n up 2nd and 3rd gear shifts, big difference in shifts quickness .
3 of 4 customers found this helpful.
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5
Love them!
Jeremy
01/11/2018
Verified Buyer
Installed them with about 50k miles. Loved them right off the bat. Put over 250k on them until I sold my truck and still see it around town!
3 of 3 customers found this helpful.
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5
Corvette Servo "Nice"
Shawn Johnson
01/08/2018
Verified Buyer
I just want to say that this made a nice improvement in my 1999 2 door 2 wheel drive 5.7 Chevy Tahoe 4L60E with a heavy duty shift kit. Made shifts nice and positive feeling. Now Im looking to buy the Superior 4L60 Super servo billet 4th gear piston and cover. This was a super easy mod and super cheap. Best bang for the buck!! Highly recommend!!!!
3 of 3 customers found this helpful.
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5
Cheap price for a nice upgrade.
Stuart
12/21/2017
Verified Buyer
I was skeptical that it would really do anything. Made a big difference . Thank you
3 of 3 customers found this helpful.
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5
WOW!
AJ
10/19/2017
Verified Buyer
Put this Corvette servo in my 2005 Tahoe and it made a HUGE difference! 1 to 2 shift is much faster and super firm, 2 to 3 shift is noticeable as well. Fast 3 day shipping, easy install, and great product!
4 of 4 customers found this helpful.
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5
Outstanding!!
Scott Haydin
09/12/2017
Verified Buyer
I ordered one of these Vette servo kits back in 2009 from your eBay store, and I installed it on my 2001 Suburban. 8 years later and my truck STILL shifts great, it will even chirp the tires sometimes from a 1-2, and even a 2-3 shift when I am flooring g the gas pedal. This small upgrade along with a Blackbear Performance tune have been some of the best upgrades I have done to my truck.
7 of 7 customers found this helpful.
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5
Great product
John wolf
07/17/2017
Verified Buyer
Works great and easy to install!!
4 of 4 customers found this helpful.
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5
04 Chevy Silverado servo upgrade
Tyler
06/19/2017
Verified Buyer
Recieved package in 2 days! Took my time to install it to make sure everything was right and for the money this an easy upgrade. Can tell a difference in shifting. Shifting from 1-2 was sluggish but after installing this servo it has firmed it up quite a bit. Highly recommended!
5 of 5 customers found this helpful.
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5
Nice!
Rob
04/27/2017
Verified Buyer
Correct parts shipped quite fast, what more can you ask for! Quality kit with everything needed to do the servo upgrade.
4 of 4 customers found this helpful.
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5
No brainer. Must have upgrade.
Dan Hwang
03/31/2017
Verified Buyer
This upgrade is cheap and OPT sends you everything you need including the o-rings. Shipping was fast and everything fit as described. The labor in itself is pretty straight forward and requires a bit of patience working in tight spaces. The results are pretty impressive with tighter shifts from 1st to 2nd.
7 of 7 customers found this helpful.
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5
Corvette Servo
James Wilson
03/12/2017
Verified Buyer
Great bang for the buck, simple install & made a big difference in a 2006 Yukon Denali. Still shifts soft enough down low for when my wife drives but a big difference in heavy throttle situations & a drop in operating temperature too. Do this to your vehicle, you won't regret it.
7 of 7 customers found this helpful.
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5
Great upgrade
B
02/13/2017
Verified Buyer
Got the servo in a couple days. Installed this last weekend. Not to hard to install. Could definitely feel the shifts firmed up.
3 of 4 customers found this helpful.
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5
Best bang for the $$
Adam
02/10/2017
Verified Buyer
For my 2004 Yukon. This made a huge difference for how much it cost. Installed myself in about 30-40 minutes. Highly recommended. You can feel the shifts. Hopefully should add some extra life to the transmission.
7 of 8 customers found this helpful.
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