FAQ Category: Common Questions

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Yes. You’ll need a bell housing adaptor and flex plate to mount the transmission to your engine. There are several manufacturers that offer these. For wiring, tuning and miscellaneous Allison parts, we recommend using www.transmissiontuner.com Precision Industries offers a torque converter specifically designed for that transmission/ engine combination.

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The factory style power steering line can be used with the GMT 800 motor mounts regardless if the Dodge vacuum pump is deleted or not. The GMT 400 motor mounts require the Dodge vacuum pump to be deleted. This can be accomplished by using a 4bt style power steering pump mount and drive gear. With the vacuum pump deleted, a factory style power steering line can be used.

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Our motor mounts will fit in your truck with a fair amount of fabrication work. The pedestals that are welded to the cross member need to be removed. Holes need to be drilled in the cross member to bolt in our lower motor mount. The nuts on the lower mounts would be accessed through the spring pockets. The cross member will need to be relieved so that it will clear the oil pan. The relieved section will need to be boxed and reinforced to restore it’s structural integrity. The cross member is a an integral part of the suspension, therefore these modifications should only be performed by an experienced welder/fabricator.