DennisB DenLorsTools.com © Summary: Recently had a blog reader that’s interested in purchasing a used Dodge Ram Pick-up truck with a 3.7 Liter engine. He wanted my opinion on 3.7’s. Although there’s many, things to inspect and consider before purchasing any vehicle, I responded with the following things that came to mind and that I would consider before purchasing a vehicle with a 3.7 or 4.7 Mopar engine.

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DenLorsTools.com Summary: Automotive repair blog and video comparing two Miller specialty tools. We have had a lot of questions regarding the Miller 8387 Valve Spring Compressor and the 8516A Rocker Arm Remover/Installation Tools. Both look similar and are for use on Dodge and Jeep 3.7 and 4.7 liter engines. These motors are commonly used in Jeep Liberty, Dodge Durango, Dodge Dakota, Jeep Grand Cherokee etc. *Note – The 8516 has been updated and the newest number has an “A” on the end now making it 8516A. Each tool is for a different job. The valve spring tool allows access at the valve keeper so a magnet can be used to remove it. The 8516A does not have the opening to allow access to the valve keeper.

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