Bagitupbaby

i have a 91 LX 5.0, i got a stock gears in the back, and i put in a 140 cluster, and the speedo is way off and i think the speedo gear worked with an 85 mph would gear would i put back in there or wat should i do?

Bagitupbaby

should i replace the speed sensor?

BigMg

NO NO NO u have to change the speed o gear ont he speed sensor or the tail shaft of the trans. if you go to any ford dealership hey will get u the right gear for the speed o.

Also i am shure that if you go to a aftermarket gear site they will have the gear for the speed o avalible.

Good luck hope everything works out

BigMG

Bagitupbaby

should i just replace the speedo gear?

frop

Yeah, that's what he said.

90GTRagtop

Just curious, My '90 came with the 140 mph cluster. Were they not standard in the 90's and 91's, or were they only on GT's? I thought after 80 something they were standard.

92TitaniumGT

the 140's came on all 89-93's I believe...I'm pretty sure GT's or LX 5.0's

90GTRagtop

That's what I thought, but then why did Bagitupbaby have to replace an 85 cluster in a '91? Don't usually have folks changing a stock 140 to an 85.

92TitaniumGT

yea Im def sure that in 89 they changed....plus the 87-88 85 MPH cluster is slightly different because it has a dummy light panel on the bottom right....and you have to mod the newer 140's to fit in the 87-88's I believe....so in dont really know why his had the 85?

5.0FoxBody

My '89 has an 85 mph cluster... mhmm...:P