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Old 08-18-2011, 03:54 AM   #1
dmartin1
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Join Date: Aug 2008
Location: mohave valley,arizona
Posts: 1,088
1978 k20 spedometer not working?

so the spedometer never worked ever since i bought the truck.

i replaced the cable from the cruise control box thing on the fender well to the tranny/transfercase.

the spedometer then started working for a few miles( like 5) and then stopped and hasnt ever since.

What do you thinks wrong and how can i trouble shoot this?

the cruise control box thing? the cable from spedometer to the box thing?

is there a plastic gear or something inside the tranny/transfercase thats bad? i need help lol

i cant tell how fast im ever going! ah!
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1969 Shortbed in progress
1982 short step, few suspension and motor upgrades.getting a 468
1978 Shortbed fleet side bonanza fully loaded
1978 k20 Silverado loaded.currently engine-less
1989 k10 suburban 9" lift
65 nova
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