Kim
Well-Known Member
- Joined
- Mar 28, 2016
- Messages
- 49
- Reaction score
- 53
- Points
- 63
- Location
- Wisconsin
- Vehicle Year
- 2001
- Make / Model
- Ford Ranger
- Engine Type
- 3.0 V6
- Engine Size
- 3.0L
- Transmission
- Manual
- 2WD / 4WD
- 2WD
This site is such a great wealth of info, and I appreciate all the hard work that everyone who contributed to that cause put into it!
Ok, I'm getting ready to do an axle swap on my '01 Ranger 3.0 5speed manual 2WD Edge (sometime this summer/fall) so I'm getting everything I'm gonna need for that project beforehand, including info. Since I'm swapping out the 3.73 open 7.5 for an LSD 8.8, I'm also contemplating changing from the stock 3.73 ratio to the 4.10 ratio before installing the axle. I've compared the RPM differences between those two choices, and I'm happy with the results shown with 4.10s.
My question is "Will I need a tune after changing gear ratio from 3.73 to 4.10?" I understand the relationship between the tone ring and the speedo, and that the ratio change by itself won't affect the speedo...what I'm not sure of is if/how the PCM will react to that change. Will it freak out and throw codes if it thinks the drivetrain is "malfunctioning" or will the difference be not enough for the PCM to care?
Ok, I'm getting ready to do an axle swap on my '01 Ranger 3.0 5speed manual 2WD Edge (sometime this summer/fall) so I'm getting everything I'm gonna need for that project beforehand, including info. Since I'm swapping out the 3.73 open 7.5 for an LSD 8.8, I'm also contemplating changing from the stock 3.73 ratio to the 4.10 ratio before installing the axle. I've compared the RPM differences between those two choices, and I'm happy with the results shown with 4.10s.
My question is "Will I need a tune after changing gear ratio from 3.73 to 4.10?" I understand the relationship between the tone ring and the speedo, and that the ratio change by itself won't affect the speedo...what I'm not sure of is if/how the PCM will react to that change. Will it freak out and throw codes if it thinks the drivetrain is "malfunctioning" or will the difference be not enough for the PCM to care?