Speed compensator vs. Speedo gear?

5.0PiMpin · 01-11-2002, 03:04 AM

was up guys, i just had a real quick question regarding the difference between a speed compensator and a speedo gear. i just installed 3.73's in my ride and i was told two different things. ford told me to get a speed compensator that connects to the speed sensor of my vehicle and every body on this web site told me to change my speedo gear? for one i dont know where the speedo gear is and i dont know if it is a job that i can handle my self. the speed compensator runs about 149 dollars and i dont know how much the speedo gear is going to run and how difficult it is going to be to install. i love doing my own work on my car but only the things that i know i wont screw up. if any body could clear up this mystery for me i would greatly apreciate it. thanks

danny

WADS56 · 01-11-2002, 04:46 AM

I am not positive but I think that a "speed compensator" is for electronic spedos on the newer mustangs. Assuming that you have a 302 and not a MOD motor you will need a spedo gear. It is simple to install, the worst part is jacking up the car.

hope this helps,
Wade

Rick 91GT · 01-11-2002, 05:04 PM

Interactive Technologies advertises in MM&FF and they have a electrical Speedo gear that allows you to run any size tire and rear gear combo with out ever changing any of the gears in the tranny or speedo cable, I think it runs $20.

Wade is right though, it is very east to replace the gear that is on the end of the cable, 1 bolt and 1 clip.

mustangbob19 · 01-13-2002, 03:40 AM

Simple job. First time it took me about 10 minutes. The speedo gear is on the left side of the tranny. You'll figure it out when you get under the car. Good Luck.

Robert

95GTS · 01-13-2002, 10:01 AM

There are mechanical and electronic speedo compensators. The electronic are for the 99-up stangs. The mechanical are for the 96-98 but I dont' see why they couldn't be used on the fox's either. They use a speedo gear, too, on those T45s. Should hook up the same way on a fox as on a sn-95 96-98. Plus the mechanical ones are about $89. Not any $149 (that's more of an electrical one). Dallas Mustang sell the mechanical ones. You might try there. As for the speedo gear it's an easy install. The speedo cable runs into the driver's side of the transmission. You can undo it from the tranny and pull it out. The speedo gear is on the end of it. Just switch the little plastic gear out and put the cable back in and tighten 'er up. I'm not sure what the internal speedo gear is on a T5 but with the 3.73s you'll need probably a 21 tooth speedo gear. Maybe a 23. I"m not sure. I know about the T45s but not the T5s. You can get a Chilton's or a Haynes manual for your stang which will help show you how to do it.

01-11-2002, 03:04 AM	#1
5.0PiMpin Registered Member Join Date: Nov 2001 Location: Daly City CA USA baby Posts: 42	Speed compensator vs. Speedo gear? was up guys, i just had a real quick question regarding the difference between a speed compensator and a speedo gear. i just installed 3.73's in my ride and i was told two different things. ford told me to get a speed compensator that connects to the speed sensor of my vehicle and every body on this web site told me to change my speedo gear? for one i dont know where the speedo gear is and i dont know if it is a job that i can handle my self. the speed compensator runs about 149 dollars and i dont know how much the speedo gear is going to run and how difficult it is going to be to install. i love doing my own work on my car but only the things that i know i wont screw up. if any body could clear up this mystery for me i would greatly apreciate it. thanks danny __________________ off road h-pipe , under drive pulley's , stage one center force clutch, removed air silencer, flows, K&N, 130 Amp pain in my alternator, optima yellow top 3.73 gears aluminum drive shaft and pro5.0 shifter...

01-11-2002, 04:46 AM	#2
WADS56 gear banger Join Date: Aug 2000 Location: CHICAGO Posts: 1,144	I am not positive but I think that a "speed compensator" is for electronic spedos on the newer mustangs. Assuming that you have a 302 and not a MOD motor you will need a spedo gear. It is simple to install, the worst part is jacking up the car. hope this helps, Wade __________________ 79 Hatch: NA 347, Stage 2 Canfield Heads, Victor JR. Intake, Blueprinted Holley 750 HP, Solid Roller Cam, Shooting for 10's on motor 93 LX: Tremec, dual friction clutch, fms flywheel, Hedman shorties, O/R H-pipe Ricer hater's club member #49

01-11-2002, 05:04 PM	#3
Rick 91GT Procharged! Join Date: May 1999 Location: Hanover, PA Posts: 1,539	Interactive Technologies advertises in MM&FF and they have a electrical Speedo gear that allows you to run any size tire and rear gear combo with out ever changing any of the gears in the tranny or speedo cable, I think it runs $20. Wade is right though, it is very east to replace the gear that is on the end of the cable, 1 bolt and 1 clip. __________________ *D/R 10108 NMRA Drag Radial, 25.5 chassis, F1R* *Check out RNH Performance Performance Engines and Custom Fabrication.* *From Mild to Wild we can build what you want, when you want it.* FOR SALE Stainless Steel Torque Box Supports

01-13-2002, 03:40 AM	#4
mustangbob19 Registered Member Join Date: Sep 2000 Location: Minnesota Posts: 125	Simple job. First time it took me about 10 minutes. The speedo gear is on the left side of the tranny. You'll figure it out when you get under the car. Good Luck. Robert __________________ 1990 Mustang GT 5.0 1966 Mustang 200 six 2001 Ford F-150 5.4

01-13-2002, 10:01 AM	#5
95GTS Git jiggy Join Date: Oct 1999 Location: MO USA Posts: 865	There are mechanical and electronic speedo compensators. The electronic are for the 99-up stangs. The mechanical are for the 96-98 but I dont' see why they couldn't be used on the fox's either. They use a speedo gear, too, on those T45s. Should hook up the same way on a fox as on a sn-95 96-98. Plus the mechanical ones are about $89. Not any $149 (that's more of an electrical one). Dallas Mustang sell the mechanical ones. You might try there. As for the speedo gear it's an easy install. The speedo cable runs into the driver's side of the transmission. You can undo it from the tranny and pull it out. The speedo gear is on the end of it. Just switch the little plastic gear out and put the cable back in and tighten 'er up. I'm not sure what the internal speedo gear is on a T5 but with the 3.73s you'll need probably a 21 tooth speedo gear. Maybe a 23. I"m not sure. I know about the T45s but not the T5s. You can get a Chilton's or a Haynes manual for your stang which will help show you how to do it. __________________ 1967 Mustang Coupe

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