I just installed the jet accu speed on my 96 f150 and followed the instuctions but now I seem to be having issues that i didnt have before.I am running 35's on the truck which made the speedo read wrong. I put the accu speed on and now the speedo does not go above 45 and the abs light is on. I tripple checked every thing and am left scratching my head.Any help would be greatfully appreciated.

 

I wouldn't use anything made by JET. I have seen way too many issues with their stuff. Send it back. If you do a search on here for speedometer calibration you should find a few posts that talk about how to reprogram the 92-96 style instrument cluster with the digital odometer for different size tires.

 

Programing for tire size,

Locate the connector at the bottom of the instrument panel below the center of the glove box. Should be LB/Y, has "PSOM" printed on the connector in white lettering. Held in place with a plastic retainer.

Insert a jumper wire or alligator clip in service wire and clip other end to vehicle ground with the key in the OFF position.

Turn key to RUN while holding down the trip odometer RESET button on the speedometer.
Release RESET button The Speedometer will prove out(sweep across dial and back). The English/Metric and revision levels will be displayed. The last number of the display id the dealer mode lockout count. This count shows the number of allowable conversion constant changes remaining. When the count is zero (0), no additional changes can be made to this instrument cluster. If a revisions required a service instrument cluster must be ordered.
Press and release RESET button again and PSOM conversion constant without the decimal point will be displayed followed by the word CAL.

Press and release the odometer SELECT button as many times as necessary to change the conversion constant to the correct value. The constant will only increase (not decrease) when the SELECT button is pressed so reducing the constant means counting up until the constant jumps to the bottom of the scale and begins counting up from there.

Pressing and releasing the RESET button to lock in the new conversion constant reduces the number of times the PSOM can be reprogrammed by one count. If you change your mind and want to go back to the old conversion constant, turn the key OFF BEFORE you lock in the new constant.

Here is a thread that may be of some additional help,
https://www.ford-trucks.com/forums/77...tire-size.html

 

Thanks for the help,was really easy to do and now i can get my money back for the accu speed.