View Full Version : Speedo to T221 cable length
bryanblock1
April 6th, 2016, 07:59 PM
Hello All,
Would anyone happen to know the speedo cable length from the instrument cluster to the Rockwell transfer case. The current cable I have is too short and will only make it to the SM420. Any help would be greatly appreciated.
Jeannie
April 6th, 2016, 11:06 PM
Moved from Builds and Journals to Transmissions.
AZKen
April 7th, 2016, 01:06 AM
Do you have a tape measure? Measure the one you have and add the distance it needs to get there.
sclor
April 7th, 2016, 01:59 PM
Bryan:
I don't know how much extra length you need, but GM had a similar problem in the 80's on full size trucks and suburbans. I found a nice "extension" on several in the junk yards that had a female on one side and a male on the other for just the purpose of lengthing the original speedo cable. I used one on my 3 speed with overdrive since its cable is a bit further back on the tranny than my original 3 speed. For a couple of bucks at a pull a part, I would guess it added about a foot to my cable length.
Hope that helps.
Regards,
Steve
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