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Stage 1 (EVO 4, 5, 6, 7)


There are many options for the EVO transmission. If you would like to add more, or change what is included, please email us.

This is our most economical rebuild and is great for those that have cars driven on the street or track.

We also spend a lot of time on synchro timing, alignment and operation to give you the best shift possible.  Click -> Synchro Blueprinting

The parts replaced include:

1st gear synchro rings

1st gear triple synchro spring

1-2 slider

2nd gear triple synchro rings

2nd gear triple synchro spring

3rd gear double synchro rings

3rd gear double synchro spring

3-4 slider

4th gear synchro ring

4th gear synchro spring

5th gear synchro ring.  

Please Note: These 5th gear synchro rings will grind right out of the box!  We detail these synchros so the timing is set up correctly and the synchro works and performs properly.

5th gear synchro spring

5-R slider

Reverse gear double synchro rings

Reverse gear double synchro spring

Modified roll pins so they won’t back out for 1-2, 3-4, 5-R

New oil seals (input and output)

New and revised set of input bearings

Parts cleaned using industrial parts washers and Aluma Blast coating.  Exceptionally clean units is one of the reasons why our transmissions are the highest quality in the business!  We have state-of-the-art cleaning equipment which other trans builders could only dream of.  More info HERE

With the best cleaning equipment, we also have a very clean facility.  All units are built in a spotless environment and using tools, and benches, which are clean and only used for assembly purposes.  In other words, the same tools used to pull your dirty old trans out of your car are NOT the same tools used to rebuild your pristine unit afterward. Take a look at the typical shop and check their tools.  It is shocking how dirty things are in most shops and that dirt will end up in your unit.  That doesn't happen here. 

Your unit is also shipped in a double walled custom made box for Jacks Transmissions.  Your unit will be sitting snugly, and safely, in preformed foam pads to assure trouble free delivery.

Note: Core charges will be refunded -- depending on the condition of your core!!


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