Ok, So I've finally got my '64 Electra convertible on the road after a 10 years resto. One of the upgrades I made was to go to a 4L60E transmission. I used a shiftworks tail shaft housing so that I can use the original speedo. I noticed my speedo wasn't showing speed but the odometer is working. Then I noticed the the speedo does show speed but only in reverse! I should also mention I am using a 140 mph speedo from a Riviera. The speedo cable is new. Anyone have any ideas? TIA Larry
I thought so too. I contacted Shiftworks (they sold me the tailshaft housing and speedo gears and they say theres no such thing :-(
I am a lot more likely to believe my own observations than what anyone tells me. Check the rotation direction of the cable coming into the back of the speedo. It should be in the same direction as the needle moving to higher speed. Bruce Roe
That is odd. The speedo cable should turn clockwise, if you remove the cable from the trans the speedo gear (or gear shaft) should turn clockwise when in a forward gear.
A 4L60 e is an electronic 700r4. i put a 1992 700r4 in my 68 Riv. I bought a new cable. It was barly long enough. I had to find the shirtest possible route to the cluster without binding it.
I'm going to pull the speedo out on the weekend and check things out. The cable is more than long enough so I'm ok with that. I will check and make sure there isn't anything broke off where the cable goes in, thanks.