Couple of ways to do it. Several speedo links located here: http://links.chevelles.net/links/WorkShop/General_Info/ I used the info in the first link & am within 2% now. That link also lists some GM part numbers though I don't know how current they are. The second link seems to be excellent too and it has there part numbers listed. Be careful - that link opens to 700r4 info, you'll need to page up to find 350 info. Another link is here: http://www.bgsoflex.com/speedo1.html
And you can get the parts you need at most any GM dealer On 8/6/05, John Nasta <[EMAIL PROTECTED]> wrote: > I'm pretty convinced that at highway speeds my speedometer is about 10 to 15 > mph off (depending on the highway). This car was converted from a PG to a > TH350. Is there a speedo gear that I can replace or something to get the > speedometer and odometer to read accurately? > > Thanks, > John Nasta > > > > -- Rick Schaefer 72 TPI El Camino
