Sometimes Speedometer

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Bobby Trill

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Joined
Oct 18, 2017
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Location
San Antonio, Tx
I have a 1990 k2500 with a 6.2 diesel and th400 with 241 transfercase (attached image, has a 96 grille and 6.5 bumper, original z71) and when i take off in the mornings the speedo works fine then slowly bounces around until completely dieing. It has no 4 wheel abs only rear abs. All the connectors on the transfercase are plugged in good but im not sure which one is the VSS. I cant find a wiring diagram for the life of me and im really frustrated at this point, believe it or not ive gotten alot of speeding tickets with a N/A 6.2 and cant afford another. Any help would be greatly appreciated. Ive searched around a little on this forum and i really like it but have quite found any useful info on this. \

also what size font do i use lol



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