Are they all created equal? I've got a 145 speedo with a non-working odometer. Can I take the gear out of a working 120 and make the 145 work?
I got mine from SCP. Be careful taking the needle off. I did ok getting it off, but broke the shaft putting it back on and had to get an e-bay cluster for a new speedo...
http://www.supercoupeperformance.com/partBrowser.aspx?partId=493
Yikes! That's why I'd consider letting them do the repair for the xtra cost.