volvowagoon
Active member
- Joined
- Jul 19, 2012
- Location
- Franklin, IN
I'm sure that there aren't many if any people on here who have thought about this, but I'm determined to keep the factory gauges in my '89 240. I think the speedometer is going to be the biggest pain in that though.
If I am not mistaking, the original gear ratio in my car was 3.31:1. I have an automatic wagon if that helps. The new Ford unit I'm guessing is a 3.73:1 because the VSS only comes on the differential if the Explorer is 2WD. A rough estimate by look spinning the rotor once and counting the pinion rotations indicate closer to this than the 3.27:1 ratio from a 5-speed.
Weren't there 240s with factory 3.73s? If so, does anybody know what speedometer was used with it and if it was electric?
Of course, there are other factors. I don't know how the Ford sensor operates other than that it's a VR. I haven't counted the reluctor wheel teeth or measured distance between wheel/sensor on either of the rear ends yet to see, but I'm hoping somebody knows enough to say "yeah it's easy" or "not worth your time" before popping the new dif cover off again.
I know that I didn't offer a lot of solid information, but I was mostly hoping to find somebody who has been through this already. Otherwise, I will attempt to be a pioneer! Thanks everybody.
If I am not mistaking, the original gear ratio in my car was 3.31:1. I have an automatic wagon if that helps. The new Ford unit I'm guessing is a 3.73:1 because the VSS only comes on the differential if the Explorer is 2WD. A rough estimate by look spinning the rotor once and counting the pinion rotations indicate closer to this than the 3.27:1 ratio from a 5-speed.
Weren't there 240s with factory 3.73s? If so, does anybody know what speedometer was used with it and if it was electric?
Of course, there are other factors. I don't know how the Ford sensor operates other than that it's a VR. I haven't counted the reluctor wheel teeth or measured distance between wheel/sensor on either of the rear ends yet to see, but I'm hoping somebody knows enough to say "yeah it's easy" or "not worth your time" before popping the new dif cover off again.
I know that I didn't offer a lot of solid information, but I was mostly hoping to find somebody who has been through this already. Otherwise, I will attempt to be a pioneer! Thanks everybody.