Hi,
I had a bear of a time installing my R-sport cluster in my '74144GL. First, the tach did not work at all. Second, the plastic fitting on the spedo cable broke as I was removing it from the old instrament panel and made the needle jump over the reset button rendering the speedo useless.
I took the speedo apart and corrected the problem and managed to find a really nice replacement tach that works on e-bay. The r-sport cluster is now in and the tach works fine. The calibration may be a little low and I will be able to check this observation once I have my new spedo cable in and hooked up properly. Before I do this I want to make sure that the cluster is fastened nice and snug. The brackets I made to hold the cluster in place are not working as well as I would like. Can anyone advise me on the shape of bracket to use? I am currently using two small plates and nuts. I am thinking that putting a ninty degree angle on the outer edge of the plates and using wing-nuts might be more effective.
The cluster sure looks cool at night with all the gauges lit up and its nice to have a volt meter and oil pressure gauge right in front of me. The bottom of the cluster could use a little touch up paint. I chipped it a bit taking it in and out. The plastic strip at the bottom while now flat since I cut it into pieces to fit better needs to be replaced.
I like the cluster because of the coolness factor. A lot can be said for the original panel however...a little less "Mad Max" in my honest opinon.

-Ted
'74 144GL
'59 PV 445