For those that have a "late" shark, there is a conversion from your 85 (ugh) speedometer to either a 140 or a 165MPH version. Saw the below in a 2004 Eckler's catalog.

1978-82 Speedometer
Conversion Service
•     Upgrade Your Speedometer To
      140 Or 165 MPH
•     Looks Just Like Original
To upgrade your 1978-82 speedometer, send it to Eckler's, 5140 S. Washington Ave., Titusville, FL 32780: freight prepaid and insured. Allow 2-3 weeks turn around time. The cost for the conversion service is listed below and depending upon the condition of your gauge, parts can run an additional $125.00-$175.00. We will notify you if additional charges are required. Include return address and credit card information.
42719 140 MPH     169.99 ea. 42720 165 MPH 169.99 ea.

I remember someone at last year's C3X talking about running down to BG with the speedometer "pegged" at 85MPH! This'll solve that - though it's not real cheap.

Terry,
That was me
But I am not sure I wanted to know how fast I was going, trying to keep up with Sarge81, who's speedo wasn't working.
I believe Sarge has a new speedo that reads upto 140 MPH. And I'll bring the walkie-talkies again so he can tell me how fast we are going. lol

Its one of those Saturday mornings I guess.... MY 79 has a 140 MPh
Speedo... and I though they went to a 85 Mph speedo sometime in the middle that model year....as a running change..same with the 3 to 2 compartments behind the seats...  so I do not think any 78's had 85 MPH speedos...

Am I right or do I need another cup of Coffee...

Bob

Dave...that was a cool pic of your dash showing your speedo buried.   BTW, Dave I got burnt on that 140 mph. speedo. Partially my fault for not paying attn. It's a 140 kmh speedo. One of these days I have to put it out. Iron82 is interested in it. I didn't forget Mike!

Anyways, thanks for the info Terry. I'll have my old 85 mph speedo converted to 140 mph over the winter.

 

Hey Sarge, we're "just here to serve". Can uderstand brother Wright not wanting to know :how fast". lol