Trail Chassis 3.9/700r4(4l60) Drivetrain Mount Kit

Complete drivetrain mount kit for the Trail Chassis or XL Trail Chassis to mount a GM 3.9L V6 with a 60* GM 700r4 or 4l60 and an Atlas or Dana 300.

Please select the correct option for which Trail Chassis you have, the standard "Trail Chassis" or the "XL Trail Chassis" as they come with chassis specific tabs to mount the motor mounts to the frame rails.

Includes pre-welded driver side motor mount with poly bushings, pre-welded passenger side motor mount with poly bushings, pre-welded transmission mount with poly bushings, tabs to mount all three mounts to the chassis (holes for 1/2" bolts, bolts not included), and a template for trimming down the Advance Adapters tcase adapter and drilling holes for the transmission mount.

Requires the use of my Engine Skid Plate dropped front lower link crossmember, included with the engine skid plate.

Trail Chassis Engine Skid Plate – Hulse Engineering

Comes with poly bushings, but if you prefer to solid mount your drivetrain you can replace the poly bushings with these Aluminum bushings below, they also work great to use for setup as to not melt the poly bushing during welding of the tabs.

YJ Large Aluminum Set Up Bushing Kit, 3/4" ID Hole | WFOConcepts.com

Requires use of Advance Adapters Atlas adapter part# AS-6800, and short output shaft part# 50-6900, linked below (they both work on the 700r4 and 4l60 for years listed below)

1.5 TH350/700R ATLAS ADAPTER - Advance Adapters

700R-4 SHORT 4WD OUTPUT SHAFT - Advance Adapters

The below listed transmissions are just an example of a compatible variant to bolt directly to the 3.9l with no adapters and work with the tcase adapter and output shaft listed above. You can use these models to cross reference into several other years and models with the same transmission. You just need to have the 60* bellhousing and the 4 bolt rear case output, it will not work with the newer version 4l60 with the removable bellhousing and the 6 bolt rear case output.

700r4 - 86 Chevy S10/Blazer with a 2.8l V6

4l60 - 93 Chevy Camaro with a 3.4l V6

Drivetrain location works with front or rear radiator location. Front radiator location requires throttle body to remain on the rear of the motor. Rear radiator location can run the throttle body on the front or rear of the motor.

On the standard size Trail Chassis, I recommend running the 3.9l intake manifold that looks like a rectangular heat sink (typically found on Buick Lucerne donors), not the manifold that looks like back to P's (kinda like this "db") as the heatsink style gives a little more hood clearance. The intakes are interchangeable between all 3.9's so you can find one cheap on ebay to swap out if you'd like.

Does not include bolts for mounts to tabs or mounts to motor/transmission etc.