Flywheels
The MT flywheel is available from Emtech Motorsports.
Custom MT flywheel
Custom MT flywheel
This billet steel flywheel is 29 lbs with out the ring gear. The flywheel ships without a ring gear.
As of Jan. 2021 there still is no source of ring gears other than harvesting one from a 04/12 Colorado/Canyon new replacement or used MT flywheel. The 161T ring gear is unique to the Atlas.
The flywheel has a dual clutch bolt pattern:
-04/12 5 cylinder Atlas
10.5" SBC < best option
The ring gear is an interference fit. To install it do the following:
1) Set up a work area free from debris.2) Set the flywheel clutch side down on some wooden blocks - make sure the flywheel is stable.3) Look at the the ring gear - one side has a bevel cut in the teeth - this is the side that must face up during the install.4) Do a mock install.5) Place the flywheel in a deep freezer for 24 hours.6) Place the ring gear in an oven @ 500*F for 2 hours.7) Place the flywheel on the blocks as in step 2. 8) Using gloves quickly retrieve the ring gear and align the ring gear to the flywheel and drop it on the flywheel with the BEVEL side facing up, Ensure its seated all the way around. The bevel Must face the engine or else the starter will not engage.9) Let the parts come to room temperature.
1) Set up a work area free from debris.2) Set the flywheel clutch side down on some wooden blocks - make sure the flywheel is stable.3) Look at the the ring gear - one side has a bevel cut in the teeth - this is the side that must face up during the install.4) Do a mock install.5) Place the flywheel in a deep freezer for 24 hours.6) Place the ring gear in an oven @ 500*F for 2 hours.7) Place the flywheel on the blocks as in step 2. 8) Using gloves quickly retrieve the ring gear and align the ring gear to the flywheel and drop it on the flywheel with the BEVEL side facing up, Ensure its seated all the way around. The bevel Must face the engine or else the starter will not engage.9) Let the parts come to room temperature.