Speedometer question 1989 - 1994
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Junior User
Joined: May 2009
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Speedometer question 1989 - 1994
I have a 94,5 f 250 with a ZF 542 Electronic spedo.
I'm replacing the trany,A guy has a 1989 zf 542 with a 7 tooth speedo connection
Acording to some research the electronics came out in 1992
Can I adapt my electronic speedo to the 7 tooth model
My model 1307-050-108
His 1307-050-056
thanks Jim
I'm replacing the trany,A guy has a 1989 zf 542 with a 7 tooth speedo connection
Acording to some research the electronics came out in 1992
Can I adapt my electronic speedo to the 7 tooth model
My model 1307-050-108
His 1307-050-056
thanks Jim
Posting Guru
Joined: Nov 2001
Posts: 1,743
Likes: 2
From: Ft Scott
The VSS in the rear axle not only supplies info for the speedometer/odometer but the ABS system also uses it. Why mess with it, just continue to use it and plug the hole for the speedo drive gear in the 89 trans.
Post Fiend
Joined: Apr 2004
Posts: 12,835
Likes: 3
From: Silver Lake Dunes, MI
Correct! speedo signal comes from the rear axle. Plug the hole in the trans with what ever you can find.
