speedo...

Hey guys,

I have to replace the speedo cable for the '77. This is confusing. Its a TH-350 3SPD (auto), and this car does have cruise control. But there are so many cable options I am lost?

 

1969-1982 SPEEDO UPPER & TACH CABLE - 23"  213005  16.95 EACH

1969-1977 SPEEDOMETER CABLE - 72" 4 SPEED 1 PCS  213050  21.95 EACH 

1969-1977 SPEEDOMETER CABLE - AUTOMATIC LOWER 24"  213061  26.95 EACH
 
1969-1977 SPEEDOMETER CABLE - AUTOMATIC UPPER 42"  213060  17.95 EACH 

1977-1982 SPEEDOMETER CABLE - LOWER WITH CRUISE CONTROL 49"  213075  20.95 EACH

Upper, Lower? Whats the differance? Which  one?

Thanks guys,

-Louis

The cruiz control system take two cables, an upper, and a lower. The lower goes from the trans to the cruiz 'transducer', on the fenderwell, and then the upper goes from the transducer to the speedo head inside.
Do you have either of the old cables? That would make it easy,; just measure them and get new one the same length. If you want to eliminate the cruiz, you need to get a regular cable for one without cruiz, and run it straight to the speedo head. Be aware, tho, the transducer usually also changes ratios, so if you eliminate it, the speedo might not read correctly, but you can change the speedo gears in the trans to fix it.
The cruiz lower cable will have a screw on cap on both ends, where the non-cruiz set-up has a screw on cap on the bottom, only. Adams' Apple38550.5862731481