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Old November 1st, 2018, 08:55 AM
BobBray BobBray is offline
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Join Date: Feb 2013
Location: Los Angeles, CA.
Truck: 1967 CM 2500
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Default Re: Was automatic transmission offered in our trucks?

Another consideration is the engine mounts. V-6's with manual transmissions use 4 engine mounts, 2 at the side of the block towards the front and 2 off the bell housing. There is no transmission mount. The bell housing mounts are typical GM medium duty truck mounts with upper and lower cushions. These are important because they take the (considerable) torque force of the engine, the small front mounts primarily just hold the weight of the engine. V-6's originally equipped with automatic transmissions had much stronger front mounts to take the torque and also had a rear cross member and mount supporting the transmission. No mounts off the bell housing. So, if you are converting a V-6 truck from a manual to automatic transmission you may want to figure out a way to strengthen the front engine mounts.
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