MODERN DRIVELINE  Offers  five and six-speed conversions for Small & Big Block LeMans
Our line of products offers simple ways to upgrade your 3,4 speed to a Tremec five-speed or a complete automatic to five or six-speed overdrive.
Intended for the customer that wants more fun & drive-ability out of their Lemans we have you covered.

Pontiac GTO – LeMans Tremec TKX transmission conversion packages

MODERN DRIVELINE  has put together kits

Perfect for the customer that already has usable 3 or 4-speed Muncie or Saginaw transmission components in their GTO.

 We also offer complete solutions to convert from Automatic to 5-6 speed

We have solutions for Small block Chevy & Pontiac, Small & big block Chevy & Pontiac, and LS applications too.

You get all the parts you need and none you don’t.

Whether you are converting from Auto to manual or just want an upgrade, we have a solution for you.
We can supply everything you need from the back of the block to the driveshaft.

You get all the parts you need and none you don’t.

   Experience the MDL Difference,

  • We extend the manufacturer’s warranty by an extra year… and that’s from the date of installation.
  • We offer the best in the industry customer service.
  • When you purchase a complete MDL Conversion Package you get, lifetime technical support.
  • You will need to select a clutch matched for your horsepower & use. Need Help… give us a call.
  • We will use any existing parts you have that we can… there’s no need to buy new if you don’t have to.

We have solutions that allow you to use your existing 166 tooth capable bell-housing, flywheel with 11″ clutch pattern, stock clutch pedal, and mechanical clutch release.
You will also use your existing transmission cross-member.
Tunnel modifications are required and the sheet metal tunnel patch is included 

    This is just one option we offer,  please contact us for other available packages.

Please contact us with any questions you may have  208-453-9800

Solutions are TAILORED to your needs with many or all of the following:

TREMEC 5 or 6-Speed Transmission with Shifter

      • All Fastening Hardware including ARP
      • Aluminum or ‘QuickTime’ Steel Bell-housing
      • Superior Diaphragm Clutch or McLeod or Tilton Twin-Disk matched to your horsepower and usage.
      • Modern Driveline U.S.A. made Lightened Billet Steel Flywheel
      • U.S. made Steel Cross-member
      • Transmission Mount
      • Wiring Harness & Plugs
      • Shift Ball & Lever and Boot
      • Hydraulic Master and Slave clutch linkage
      • Synthetic Automatic Transmission Fluid
      • High-Speed Precision Balanced Aluminum or Steel Driveshaft
      • Detailed Installation Instructions and Lifetime Tech Support

The MDL conversion packages are as complete as possible.
You get ALL the components you need whereas competitors’ packages provide only the basics.
When comparing costs be sure you are comparing apples to apples on the contents, and quality & after the order service.