I'm in the process of assembling an H55 and late 87 transfer case for installation into an older cruiser with a V8 engine. Probably going to buy the Marks adapter for this project but have a question. What is the length of the Marks adapter from the face that attaches to the engine back to the face onto which the Toyota bellhousing attaches? Anybody help me with this info? I've also emailed Advance Adapters to see if they can provide the answer. Thanks in advance for any help.