RE: [Chevelle-List] 4.11 speedo

[Dale McIntosh]

Title: Message

You have to change the transmission speedo gears to match.  Assuming tire size remains the same and you know what old rear ratio you're replacing with what new ratio, it's a simple swap of a couple of speedo gears.  A couple of sites to help you calculate which gear you need are:   http://members.core.com/~faldrich/speedo.htm http://64.226.206.184/tech_info/speedo_gears.htm http://www.chevelles.com/shop/speedo.html   All the above work well if you like math and are changing wheel/tire sizes from stock as well or using a non-factory offered trans in 67 like the TH350, 200-4R or700-R4.  If you're using stock (or comparable) sized wheel/tires, http://www.team67.com/groups/group.004/miscellaneous_parts.htm will show the GM part numbers for a 67 w/4-speed and 4.10 gears (Chevrolet didn't offer a 4.11 ratio after 64 but did have a 4.10).  The gear you need for a 4-speed w/4.10 gears is group 4.337, part number 3860348; 25 tooth and orange in color. Dale McIntosh TC Gold #92/ACES #1709 67SS/67 Elky Dale’s Place – My 67 SS and 67 El Camino ChevelleStuff – Decoding info on 64-72 Chevelles Team 67 – 1967 Chevelle/El Camino Specific Midwest Chevelles – Midwest Chevelle Show Information -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Batsy74 Sent: Monday, March 31, 2003 5:24 PM To: [EMAIL PROTECTED] Subject: [Chevelle-List] 4.11 speedo How do you adjust the speedometer when changing rear end gears?   Thanks,  Batsy 67 ElCamino