97+ Vehicle Speed Sensor Questions

[oldseddie]

While doing research for my 97+ conversion I learned that the cpu uses a vehicle speed sensor on the rear axle for 97 models and an ABS sensor on later models. I have a rare dana 44 in my chief and don't want to have to change it for a 97 axle to get the sensor input, but I also despise antilock brakes. What did you guys that have done this already used for speedo input?

[yxmj]

I have found that when the red lights flash in my rearview....I am going too fast..... :laughin: ...... . :MJ 1: .

[oldseddie]

Or not fast enough!

[Alexia]

The ABS option on Cherokee models was not common at all.  I have only seen one in my life.  If for some reason you have a 1997+ computer with ABS programmed into it simply grab a non-ABS computer for the same year.

[reece146]

Are you confusing things, OP?

 

AFAIK the VSS is in the transfer case tail housing (speedo gear). There is nothing on the rear axle for VSS.

 

As for ABS, I thought it was a standalone system with its own separate controller (ECU)? I could be wrong though as I haven't had to deal with it.

 

When I changed the rear axle on my 2001 XJ (C8.25 for FF D44) there was no electronics or sensors to deal with.

[oldseddie]

I talked with an old friend that is a Jeep tech at the dealership and he may have been confused as it has been awhile since he has seen one in his stall. I have a 97 wiring harness as well as a 98 and neither has abs. I was hoping an electronic sender from the transfer case of a 91-95 would work. 

[reece146]

Spidey-sense says there was a change from mechanical to electronic around `91-`92 and then the bus style and/or mechanical interface changed again around `96 w/ OBD2. I may be muddling YJ and TJ stuff in there though.