Re-programming PCM for larger tires

[Red360]

Took my truck to Zangara Dodge today to see if they could input a new "revolutions" per mile since I'm running larger tires. The lowest number the computer would accept is 650 and the highest number is 689. So it looks like I need to buy the speedometer corrector. I will say that Zangara didn't charge me for this!

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2000 24V, 6-speed, Flame Red, Agate leather, 3500 QC, 4X4, SLT+, 4:10's, LSD, AMSOIL Air/Oil filters and all Fluids, 275 RV squirters, S. S. nerf bars, Line-x, Autometer Ultralites Pyro/Boost gauges, MOPAR tow hooks, Rancho 5000 steering Stabilizer, Rickson 19. 5's with Cooper C-140's, Sky-Jacker 2 1/2" lift in front, Upper & Lower control arms.

 

[SandDemon]

That can't be right? By my numbers, with the stock 265's we spin 637 rots per mile.

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2001. 5 ETH/DEE 2500 4x4 3. 54 lsd. 33' Weekend Warrior 5er and an army of toys to fill it!
'96 1500 360 3. 90 LSD 3" cat back no muffler! 110,000 and still eating chebbys for lunch!

 

[Red360]

I was standing right next to the service tech. If he punched in any number higher or lower than what is listed in the first post, into the DRBIII, the computer said "invalid entry"

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2000 24V, 6-speed, Flame Red, Agate leather, 3500 QC, 4X4, SLT+, 4:10's, LSD, AMSOIL Air/Oil filters and all Fluids, 275 RV squirters, S. S. nerf bars, Line-x, Autometer Ultralites Pyro/Boost gauges, MOPAR tow hooks, Rancho 5000 steering Stabilizer, Rickson 19. 5's with Cooper C-140's, Sky-Jacker 2 1/2" lift in front, Upper & Lower control arms.

 

[Rambling]

Maybe their DRBIII needs an update #ad
.

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<font color=#990000>~<font color=#990000> '99 2500 SLT <font color=#990000> ~ QC ~ 4X4 ~ LB ~ Auto ~ 4:10 LSD ~
<font color=#000000>*<font color=#990000> BD E-brake<font color=#000000>*<font color=#990000> BD Autolock<font color=#00000>*<font color=#990000> Gear Vendor OD<font color=#000000>*<font color=#990000> Bullhide spray-in Line <font color=#000000>*
<font color=#000000>*<font color=#990000> 2k Komfort 5'er - 9,700 lbs <font color=#000000> *<font color=#990000> Jordan Research 2020 T-brake <font color=#000000>*<font color=#990000> Garmin III+ & Laptop software <font color=#000000>*
<font size=-2>... Keep on Rammin'! You'll love the way it feels!! #ad
... <font size=-1>

[This message has been edited by Rattlin (edited 05-15-2001). ]