4T65E Shift Kit

Transmission & Drivetrain - 4T65E Shift Kit

4T65E Shift Kit

56 reviews
Regular price $18.99
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  • In stock, ready to ship
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Our transmission shift kit speeds up the shifting of any 4T65E. It works on the standard non HD and HD versions of the transmission and can be installed in 2 hours. Shift kits can increase the chance of hard part failure but they do increase clutch life. We do not recommend this kit for cars running 20" wheels due to the chance of breaking an input shaft due to additional rotational weight.

We found with many kits is the lack of instructions as it relates to shift firmness. Many users find themselves guessing at how firm to set up their kits or end up with a kit that shifts great on the 1-2 and weak on the 3-4. Because our kit comes with more shim sizes than our competitor's kit, you can choose 4 levels of shift firmness for the 1-2 and then again for the 2-3 shift. Only ZZP brings you a kit with the options and instructions to get the precise shift quality you desire and all at a price you can afford.

What is included in the kit are a bunch of various sized shims, a new transmission filter, and detailed instructions. You can generally reuse your trans pan gasket since it is rubber.

Perfect time to upgrade to Dexron 6 fluid.

Works on 4T65e '98+ GT/LS, '97+ GTP/GS/SSEi. Also works on Pontiac Montana.

Instructions

Customer Reviews
4.7 Based on 56 Reviews
5 ★
80% 
45
4 ★
13% 
7
3 ★
5% 
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CS
04/06/2022
Chad S.
Canada

Trans filter & shift kit

I haven’t had the opportunity to install it yet. Seems very simplistic in construction. I wish ZZP would find a cheaper alternative for shipping to Canada. Pay more in shipping than the cost of the parts. Aside from that, I’ve bought other things from ZZP that I’m quite happy with.!

AO
02/19/2022
Aric O.
United States United States

Easy install

I installed this in a 2008 Grand Prix GXP. Super easy, just follow the supplied directions. Maybe add some detail on the thermostatic element in case it falls out like mine did, I figured it out no biggie. I didn't have any issues with my transmission, just wanted to change the filter since it was probably the first time since I bought the car with just 52k miles. I noticed a 10+ degree reduction in temps. Also like the way it shifts, nothing too drastic, just firm like they should for those of us that like performance.

PW
11/19/2021
Peter W.
United States United States

Beautiful

Awesome

WB
10/15/2021
William B.
United States United States

Helped my long shifting trans problem

I have an 05 Pontiac Montana that has been hard shifting for a few years. A trans rebuild is 1800 to 2400 dollars. The 1-2 and 2-3 shifts became too long for the computer so it sets max trans pressure which causes hard shifting. Someone with a similar problem said he installed a shift kit and this helped keep his transmission running. The shift kit firmed up the shifts enough that the computer no longer sees any long shifting. The only trade off is now when I get ready to accelerate I have to give the trans a second or two before pressing the gas pedal. If I do so too fast the rpm's come up a bit and then the trans engages a bit harsh.

BL
06/13/2021
Bryce L.
United States United States

Good product

This is literally the first thing ive personally installed/maintained in a car. Zzps written directions combined with Mudfords video on youtube made it straight forward and simple. Thanks for making this type of mod accessable to a total newbie like me.

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