Categories: , , , , SKU: 60-64 IMPALA 5 & 6 SPEED CONVERSIONS







Offers  five and six-speed conversions for
Small Block, Big Block or LS swapped Impala, Bel-Air, Biscayne, Kingswood & Caprice

Our line of products offers simple ways to upgrade your 3 or 4-speed
to a Tremec five-speed or a complete automatic to five or six-speed overdrive.
We have you covered.


  • Increase in fuel economy with overdrive.
  • Lower RPM’s for more drive-ability and a much quieter in-car feeling. 
  • Reduce wear on your engine & drive-train parts
  • Reduce engine temperatures, promoting a longer-lasting engine.

Experience the MDL Difference,

  • We extend the manufacturer’s warranty by an extra year.
    And we add a 1-year grace period.
  • We offer the best in the industry customer service.
  • When you purchase a complete MDL Conversion Package you get, lifetime technical support.


MDL modified TKX  for 61-64 Impala bring the shifter stub up in OE position
The shifter is a close-ratio custom made piece that is now an integral part of the transmission
This is an upgraded transmission, this isn’t just a bolted-on shifter.
They are all prepared at our facility by hand to ensure quality & precision.
Not available through TREMEC.


Above left, you can see the differences between the TKO & TKX cases.



These images of the MDL modified TKX, especially for ’61-64′ Impala placing your shifter in stock OE position.

Click here to see what’s different



Check out our HOW TO page, just click this link

We also Have OIL COOLERS   click this link to find out more


Modern DriveLine has put together this conversion solution for the customer that already has usable 3 or 4 speed Muncie or Saginaw transmission components in their Impala & related models


64-67 Impala 5 & 6 Speed Conversions 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

1960-64 Impala 5 & 6 Speed Conversions packages are as complete as possible.

You get ALL the components you need where competitors’ packages provide only the basics.
When comparing costs be sure you are comparing apples to apples on the contents, quality & after the order service.

MDL is a stocking distributor


Click or call for a customized quote for your requirements.