Stupid question & I'm sorry, not trying to offend, but you didn't replace a 120 w/ a 140 did 'ya? That would cause a lot of difference. There's a thread on here about how to cal the 140 to work in a 120 cluster...
just a thought?
Stupid question & I'm sorry, not trying to offend, but you didn't replace a 120 w/ a 140 did 'ya? That would cause a lot of difference. There's a thread on here about how to cal the 140 to work in a 120 cluster...
just a thought?
Stupid question & I'm sorry, not trying to offend, but you didn't replace a 120 w/ a 140 did 'ya? That would cause a lot of difference. There's a thread on here about how to cal the 140 to work in a 120 cluster...
just a thought?
It's a common swap to go from the early model 120 to the late model 140 speedometer. I've done it on both my SCs, and it doesn't require any recalibration...just plug it in and go. Reseting/rebuilding the odometer is the fun part.
David
Ok, I must have gotten confused. I remember reading a thread about swapping and using the GPS for reference then adding resistors in behind the spedo. Come to think of it, maybe it was a decal swap only? I'm getting older & my memory doesn't work as well as it used to
Is your transmission / rear gear / tire size different between those two cars?
The tires are larger but the diameter is very close not enough to account for the difference.
I'm sure it is a resistance issue with bad wiring. We'll see what happens after I improve that then if I need to make a speedo gear switch I will.
Regards
Sean
LOL 3/4 of an inch in tire height difference and your speedo will be off 5mph
Sean, i have a spare cluster or two (just got to dig them out), if you want a third speedo to try out let me know.
I'll try to look them out tomorrow between pulling my hair out in fixing my '96's steering column (the good ol' can't shut your car off issue)