Look of Seattle fsb Tec write on his 9" install

Look into a GPS speed on kit ?

 

the PSOM converts the VSS signal to be useable. the cable driven VSS and the rear axle VSS produce different signals, ive tried. the rear axle sensor would show 120mph when doing 20. best bet would be to wire it without the speedometer or convert the instrument cluster to use it. then use a VSS relocation kit on back of the t-case. or you can use a tuner to change the EEC to use the cable VSS

I modified a 87-91 cluster to use a PSOM and Steve modified a 80-86 cluster to have one.

http://www.supermotors.net/registry/2742/69150
http://www.supermotors.net/registry/26713/83798

 

Is there a way to fool the ecm with the old style vss.

Fighting things isn't the way to make it work. Go with it. If you don't want to use the (stronger) 8.8" w/ABS sensor and tuck a PSOM out-of-sight into the dash, just use an '89-91 EEC that's designed to control a 5.8L & E4OD using a mechanical VSS on the t-case. :thumbup

 

I think Broncos (of that body style) themselves only had e40d and 5.8 in '91 (maybe '90)

F150s however had that combo available as soon as the e40d came out

 

I have no problem retrofitting the dash for the PSOM. I was under the impression the vss sent signal to the rabs then to the PSOM. I do not have any of the wiring harness for the inside of the truck. I only have the motor harness and the under hood harness. I was asking to avoid spending unnecessary cash. If there is a way to work it out without the abs then I will make it happen with help from you guys. Thanks again

 

I was under the impression the vss sent signal to the rabs then to the PSOM.

On F-series, the PSOM & RABS receive the ABS signal in parallel. On Broncos, the ABS sensor goes to the 4WABS module, which generates a new signal that goes out to the PSOM.
http://www.supermotors.net/registry/media/95932
http://www.supermotors.net/registry/media/170517

I think Broncos themselves only had e40d and 5.8 in '91 (maybe '90)
F150s however had that combo available as soon as the e40d came out

IDK the first year for E4OD in Broncos & F150s, but apparently it was AFTER the heavier trucks got it.

LIGHT TRUCK: 1989 E-250, E-350, F SUPER DUTY, F-250, F-350

ISSUE: The E4OD is a new 4-speed automatic overdrive transmission. The E4OD transmission was derived from the C-6 automatic (3-speed) transmission.

ACTION: Use the following information to familiarize yourself with the various E4OD components. This information can help you explain the operation of the transmission to the customer.

http://www.supermotors.net/registry/media/704885

 

Thank you Steve83 I appreciate all of the information you have provided. I will start the wiring process in a couple of weeks. It will either work or it won't. Could you point me in the proper direction to find the correct ECM for the 89-90 truck with the t-case vss as you suggested earlier in this post as a last resort. I will continue to research this as well. Thank you for your patience again.

 

Junkyard. :shrug

 

If you are going to use the original speedometer I don't see an issue with what you have. Find a harness from a 89-91 with the E4OD. I run a 9" in my 90 with an E4OD and a 93-95 lightning computer with out any issues.

With the customization you are doing I don't think you have to focus on a bronco harness and could look at F150-350 trucks. This would make a much larger parts pool too.

tim

 

Thank you for the info I will hit the yards this weekend and see what I can come up with. The yards here are a little picked through so I may have to peice some things together.

 

Did you not pay any attention the pm I sent you?

Your stay here is going to be very short.

 

I'm not sure is this post directed toward me?? If so I have received no PM and do not know what you are referring too.