PerformaBuilt Transmissions

09/03/2026

Our most popular build for the last 20 years. The level 3 4L60E capable of holding 900whp based on 4000lbs of weight.

08/27/2026

Psa 🥳 Its been difficult lately trying to help customers differentiate if they need a 4L60E or a 4L70E. 9 times out of 10 most are insistent they have a 4L60E when we are in the 07 up area of model year.
The language on the internet is loosly used as a "4L60 series" of transmissions. So to set the record plain and in simple terms, if you have any of these vehicles in these model years with a stock computer listed below... it is a 4L70E. These have 15 pins for 07-08 models and 17 for 2009 up models instead of the 4L60E and 4L65E 13 pin most 2006 and prior.
If you have a 4L70E... We need your core before we even begin - no exceptions, no core charge, your core must be sent in to be built.
(We deal with austrailia often so thats why the saab is there you crazy fellas)
Www.performabuilt.com

Chevrolet Silverado 1500 / GMC Sierra 1500 (2006–2008 select V8 models)(not Classic)
Chevrolet TrailBlazer SS (2006–2009 with the 6.0L LS2 V8)
Chevrolet Avalanche (2007–2008)
Chevrolet Suburban 1500 / GMC Yukon XL 1500 (2007–2008 select models)
GMC Envoy / Envoy Denali / Chevy Tahoe
Hummer H3 / H3T (Select V8 alpha models, late 2008–2010)
09-12 colorado and v8 canyon trucks.
Saab 9-7X Aero (2008–2009 with the 6.0L V8)

Buy the best rebuilt transmission the first time. Two-year warranty. Go ahead, try to break it! Specializing in Street Racing, Offroad, and Heavy Towing.

08/18/2026

How can a simple little LED destroy your transmission and torque converter? An improperly installed led conversion without the proper resistance will absolutely cause lockup failure in your overdrive transmission. The stop lamp is actually connected to your pcm and pcms dont like when theres a change in current or load... yes you all with the 3rd brakelight swap in your pickup trucks, i see you. Have no fear! Give my new video a watch below 👇
https://youtu.be/X1xFruMEeag?is=N_TiJF7uzILcIaKT
EDIT- This post got removed for unknown reasons so reposting
See less

08/14/2026

I really hate the question "whats your best price" when im devoting 20+ minutes of time to most customers regularly during a typical phonecall.

If you're coming to Performabuilt because you think we're the cheapest shop in town, we're probably not the right fit for you.

If you think theres wiggle room on price, time, or quality for the literal best results in the USA out of any 4 speed transmission out there we are probably not for you.

We arent just saying that like most.. its actually been proven. Hell, you can even ask Ai nowadays.

Since 2006 we have re engineered world class results and built top performing transmissions for vehicles all around the globe.

With a PerformaBuilt Transmissions, you get industry leading tech support and a massive library of educational videos on our channel that just keeps growing to help you through your build. Our competitiors offerings simply pale in comparison.

Got an issue?
We don't guess. We prove it. We advise, We help you through the process.

Good help hard to find? Not here.
Yes, our labor may cost more than some shops. That's because we invest heavily into our people. We invest in our shop and equipment. Most of all we invest our time, often off hours.

Our goal isn't to be the cheapest. Its to provide the literal best transmissions out there for cars and trucks we grew up loving.

Sometimes the least expensive repair isn't the lowest invoice it's the one you only have to pay for once.

So next time you want to ask " whats your best price" think about how many transmissions youve been through before us. Think about the downtime and the timeslips that just seem wrong. Get a real transmission and experience a Performabuilt for yourself.

07/31/2026

Once a day at least on the phone. Can someone tell me why everyone thinks this is going to be fine 💀
Let me list the 5 stages of running old or inadequate flexplates -
1. Overflex occurs and breaks your pump or you lose your leg
2. Pants shid from loud noise
3. The vehicle is now broken
4. It must have been the transmissions fault
5. everyone is sad

At least get a summit one fellas 🙏

07/30/2026

A winning combination! A well built transmission, proper stall speed, and dialed suspension in my opinion are more important than all the power in the world. Check out one of the meanest street machines out west featuring our Performabuilt 4L60E we built for Jamie back in 2023!
Tired of tail lights and burnt fluid? Give us a call, and experience performance that only a performabuilt offers for yourself!

07/24/2026

Yall ready? Piece by piece we are fine tuning a new offering 🤌

07/04/2026

For the Freedom to Race! Happy 250th! Everyone have a Safe and Happy Independence day from the fastest 4 speed shop in America!

07/02/2026

Coughs in 7s. Been quiet for awhile, weve been working on some big things for yall 😀

05/18/2026

Always love building these and its a good way to start off on a monday! Reverse Pattern Manual TH400 🥵💪🏁. Classic.