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Welcome to TnT Performance and Auto Repair

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Everything O.E. or Performance
Classic or Modern
Or making your classic more modern!

Check Out What We Can Do For You!!!! 

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Performance Engines Traditional.

The Classic

Need an engine that is original, stays true to the era but is modernized enough to make it the miles of today's modern engines??  Or how about nothing beats the sound and look of the good ol Big Block!!! TnT has you covered!!!

Modern Performance LSX based

4.8,5.3,6.0,6.2 and Stroker applications

TnT Performance and Auto Repair has the LSX based platform engine packages and designs that are proven performers for your daily driven, weekend street cruiser or flat out performance applications. We custom blueprint and design each one to suit your exact needs.  NO CRATE ENGINES HERE THESE ARE THE REAL DEAL! Some people will used junk yard engines and slap a camshaft and some paint on it call it done. others use ordered crate engines that just are not made for the application you need. Message or call for a quote! pre priced packages coming soon!!

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General Motors Stock and Performance Transmissions

Transmission Fluid Maintenance and shift kits as well.

Most local shops are in between $1,800 and $2400 to overhaul the most common failed transmission in GM trucks for the last decade, The 4l60e! and in some cases we have taken these units apart a year later to see they only replaced what FAILED !!!! UNFORTUNATELY, the warranty they gave was 6 months to a year and its over! 


 Not at TnT.  We take pride in our work and replace everything done in a proper rebuild including , all steels , frictions, band, separator plate, the failure prone shell is updated to a bulletproof unit, and all the necessary updates are performed as well as changing the 3/4 pack from 5 to 7 frictions in most cases!!!! And we do all this for $1450 INSTALLED IN MOST CASES!!!!! 

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2 YEAR 24,000 MILE WARRANTY!!!


CALL OR MESSAGE US TODAY!  

Complete Restorations and Resto-Mod

No job too big!!

We offer complete frame off restoration of your classic ! Weather it be back to completely original, or a highly technical up to date modern featured Resto-Mod TnT can bring your vehicle back to its original form.. Or give you every modern feature seen in today's vehicles in your classic!!!

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GM Active fuel Management and DOD lsx based engines solutions!

GET A SECOND OPINION BEFORE REPLACING YOUR GM AFM AND OR DOD ENGINE!!

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GM 5.3,6.0 AND 6.2  DOD delete and performance packages

You’re a busy person — don’t let GM AFM and DOD problems get in your way. There are a wide variety of  Soloutions to the problems with these systems that offer added power as well in some cases added MPG. Contact us today!!!  PRICES BEING POSTED SOON!!

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Opening Hours

Come Visit

Mon: 8:30am - 5:30pm
Tue: 8:30am - 5:30pm
Wed: 8:30am - 5:30pm
Thu: 8:30am - 5:30pm
Fri: 8:30am - 5:30pm
Sat: 9:00am - 2:00pm

Care Tire
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Contact Us

402 W Carpenter St Jerseyville IL United States 62052

(618) 946-3712

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(618) 946-3712

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