how do i fix my speedometer

[1990rooster]

i have a 1990 k1500 with the 700r4 lifted 4inches running on 285/75r16 how do i get my speedometer back on track?

 

[95C1500]

This is from another forum. Try the links.
http://67-72chevytrucks.com/vboard/showthread.php?t=9100

 

[Mean Green]

From my understanding for the 90-95 models you have to modify the DRAC unit to correct the speedo. Heres a few link you may want to check out on how to do it.

http://www.tbichips.com/drac/
http://www.614streets.com/drac.html

 

[95C1500]

From my understanding for the 90-95 models you have to modify the DRAC unit to correct the speedo. Heres a few link you may want to check out on how to do it.

http://www.tbichips.com/drac/
http://www.614streets.com/drac.html

Is this something a shop can do?

 

[Wagonbacker9]

Is this something a shop can do?

They could. I seriously doubt that any of them will have the equipment or be interested in modifying your vehicle (that is effectively what they're doing)

Soldering in the dip switches and such is something any electronics shop should be able to do for you though.

 

[outalne94z71]

From my understanding for the 90-95 models you have to modify the DRAC unit to correct the speedo. Heres a few link you may want to check out on how to do it.

http://www.tbichips.com/drac/
http://www.614streets.com/drac.html

90 does not have a drac, those were still mooney gauges and had a chip in the cluster

 

[1990rooster]

This is from another forum. Try the links.
http://67-72chevytrucks.com/vboard/showthread.php?t=9100

thank you that is just what i need

 

[Mean Green]

90 does not have a drac, those were still mooney gauges and had a chip in the cluster

Yes you are correct, I forgot that the needle gauges didn't start until 91'? IIRC both where available in 91?

 

[outalne94z71]

Yes you are correct, I forgot that the needle gauges didn't start until 91'? IIRC both where available in 91?

yes both available in 91 and that particular 91 needle gauge also has the internal chip setup, it is a direct swap cluster for a 91 moooney equipped truck but needs 3 wires moved and tach wire added to swap to a 88-90

i did the swap in my 88, not all that bad to do.