Zero Gravity Performance

Zero Gravity Performance has been in the automotive performance industry for over 35 Years. We specialize in high performance engines, transmissions, computer controls and accessories. Our performance transmissions are some of the strongest in the business and are hand built in house.

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Best-Sellers

Chevrolet Performance LS376/525 HP Connect & Cruise Crate Engine 6L80E Transmission Package

From: $21,620.00

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GM 6L80E 6L90E 8L90E Tap Shifter Floor SFT5000

From: $510.00

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Gauge Driver Controlled Reverse Lights Neutral Safety Relay kit

$345.00

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6L80E 6L90E Lokar Floor Shifter Tap Switch Kit

$125.00

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6L80E Transmission Production

From: $3,200.00

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TCM-2650 GM 6L50E 6L80E 6L90E Transmission Harness

$350.00

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Transmission Conversions

Gen V LT1 Chevrolet Crate Engine 10L90E Transmission Kit
From: $7,200.00
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GM Engine 4L80E Transmission and Controller Conversion Kit
From: $3,600.00
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Cummins R2.8L Engine 6L80E/6L90E Transmission 6 Speed Conversion Kit
From: $4,450.00
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Gen V LT1 Chevrolet Crate Engine 8L90E 4WD Transmission Kit
$7,200.00
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Gen V LT4 Chevrolet Crate Engine 10L90E 2WD Transmission Kit
From: $7,500.00
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Conversion Kits

The TCM-2650 will allow you to adapt the GM 6L45E, 6L50E, 6L80E and 6L90E transmission to practically any engine. We have successfully used these on numerous engines, such as Cummins Diesels. These kits come with all the necessary hardware to get the transmission to function All that is needed are a throttle position and engine RPM signal. We offer either 6L80E and 6L90E transmissions kits. We can also get the 6L45/50E transmission working.

Testimonials

Customer Reviews

    
 
 
       Posted on Google  
   
   Nathan McConnell 
 
 
 
 Trustindex verifies that the original source of the review is Google. Jim helped me out with a project on my truck. Very knowledgeable and helpful
  
 
      Posted on Google  
   
   Robert Lane 
 
 
 
 Trustindex verifies that the original source of the review is Google. Had Jim sort out my sport shifter on my 85 gmc pickup.  He made some adjustments to the trans while he was in there.  Everything works perfect.  Very nice guy.
  
 
      Posted on Google  
   
   Trinten M 
 
 
 
 Trustindex verifies that the original source of the review is Google. I've been struggling with a custom setup (LS4 with a 4T80), trying to get an aftermarket TCU to work properly with it. I contacted a vendor and they directed me to Jim, who has been awesome at following through with what he told me. I told him I needed the equipment by Friday (48h window) - I had it. I told him I needed a .bin file for an "early" (93-99) 4T80, as of 9:30am this morning I have it. So far I'm very happy with the service.
  
 
      Posted on Google  
   
   Tom Tait 
 
 
 
 Trustindex verifies that the original source of the review is Google. Brandon was very helpful
  
 
      Posted on Google  
   
   Stu Simonsen 
 
 
 
 Trustindex verifies that the original source of the review is Google. I have worked with Jim at Zero Gravity on several projects.  He is amazingly knowledgeable with GM transmissions and best uses for my applications.  I would highly recommend them for ALL related needs!!