2012-2018 Jeep JK 8 speed swap.

We are Now CARB LEGAL on our 2012-2018 Jeep JKs Here we have a 2012-2018 Jeep Wrangler we did a 8 speed swap using a Dodge Ram truck 3.6L transmission 4x4 and put it in this Jeep.
We are seeing a big improvement in power and gas mileage.

So when doing the 8 speed swap you don’t need to change anything in the engine computer the computer stay’s all stock.

You do need to change out the t case if you have a automatic transmission to a 2007-2018 Manual t case or a 2007-2011 automatic transmission t case.


Need to check the transmission fluid while the engine is running and the transmission is at 100 degrees.
8 speed in a 3.6L JK 845RE

Transfer Case cable mount 52121832AC $30.00

Transmission cooler, HDA-679 $80.00

Transmission cooler lines 68291875AB for the 8 speed $270.10

2 Transmission cooler fittings 68489743AA $50.00

8 Speed wiring $1500.00

8 Speed floor plate and spacers 4

Truck Transmission mount to t Case adapter 68147344AA $110.00

8 Speed steel trans pan Jeep JT 68408606AB $200.00

Transmission oil 68218925AB $30.00 needs 10 quarts

The transmission new can cost $4000.00

Low mile used $1200.00

Shifter $200.00 used

Bezel $50.00

T Case used $500.00 non Rubicon

Gear gauge $150.00

Plate B $50.00

Transmission Cooler Mounts part # JKTCM $50.00

Labor $2500.00