Phartung, I have a 2004R in a street rod and it has worked out great. However, a good one with converter, oil cooler, TV cable, TV cable geometry adaptor, and shifter is NOT inexpensive. The one I bought from Bow Tie Overdrives was about $1600 including shipping, and that was about 6 years ago. A shifter from Lokar was about another $200 from Summit Racing.
The overdrive ratio is 0.67, so the RPMs are really low in overdrive and that's a consideration with an antique engine.
Also, the 2004R has no vacuum modulator. Internal oil pressures are regulated by the TV cable alone. If you check Bow Tie's site or any other seller of those transmissions you will see information on how absolutely critical it is to have perfect TV cable geometry at the carburetor. According to the information provided by the builders, if the TV cable geometry is not perfect the trans will self destruct almost immediately. Kits to correct the geometry are available for carbs commonly used in street rods.
Bow Tie provides a check off sheet to verify correct internal pressures under many different conditions. This requires use of an external pressure gauge to measure and record pressures. Then you phone this infromation in to them. If the pressures are all corrrect, they activate your warranty. If the pressures are wrong, they help you to find and correct the source of the problem. If this procedure is not followed there is no warranty, and that is understandable considering that these transmissions will self destruct immediately with incorrect TV setup.
Installation of a 2004R or 700R4 is not for the "Quick and dirty" mechanic if the trans is expected to last. Done right, it is a really sweet overdrive.
