Speedo Adjustment - Pirate4x4.Com : 4x4 and Off-Road Forum

Aubrey · 11-24-2006, 05:20 PM

What's the best way to adjust the speedo on a 95? I thought I could just swap out the gear for a larger one but that doesn't seem to be the case. - thanks

jarvisjeep · 11-24-2006, 09:37 PM

I've done a bunch of them with a scan tool. You have a list of tire sizes, then the one at the bottom of the screen says rev per mile. So you calculate revolutions per mile and there ya go. But you need a scan tool first.

BlueDodgeRam · 11-28-2006, 08:49 PM

i installed a superlift truspeed calibrator. really handy if you switch tire sizes or gear ratios, also adjusts tranny shift points

its superlift part number #33002

nhlbill · 11-29-2006, 09:51 PM

What if you have a manual tranny like I do?

Do these OBDII style programmers work for that? Or how about the Superlift style ones?

Doesn't the Dodge have a 231 T-case like the Jeeps where you can just change out the speedo gear to the correct number of teeth for your gear/tire combo?

BlueDodgeRam · 11-29-2006, 10:06 PM

mine just spliced into the ABS sensor wire and a fuse for power. should work

jarvisjeep · 11-29-2006, 11:29 PM

Purchasing a one of those sensors and splicing into wires seems like a very long way around it. All you need is a real(real as in not 100 bucks at autozone, but of a tool truck) scan tool. You can correct tire sizes with like 8 button pushes and a calculator. At out work with out 10k scanner(think we have to pay for it!), we charge 41 bucks to change it if the guys an ass. If your not an ass, its like 30 bucks or so.

OR you can splice into a VERY critical wire(abs). Then wait a year or so when that connection corrodes and the wire is now junk. Unless your splicing it a diffrent way then most of the kits I've seen do it in, this is inevitable.

bob4x4 · 12-05-2006, 05:31 PM

Quote:

Originally Posted by Aubrey

What's the best way to adjust the speedo on a 95? I thought I could just swap out the gear for a larger one but that doesn't seem to be the case. - thanks

The 95 should still have a gear in the transfer case.I know the diesels do inthat year

Bob

Aubrey · 12-05-2006, 08:10 PM

It does but from the dealer, it's just the one gear. So you can't swap out one without swapping out the internal one too, right? And then that means tearing apart the t-case for all this mess.

latest project · 12-07-2006, 03:17 PM

There is a gear on the t-case output shaft that spins the gear on the sensor, all you have to do is pull the sensor, swap out the gear and stick it back in. It is one bolt and takes maybe 5 minutes

Aubrey · 12-07-2006, 08:27 PM

I can swap out my current 31 tooth gear with a gear of a different tooth count without swapping out the internal gear?

latest project · 12-08-2006, 08:18 PM

yes, here's a link to the chart to figure out what gear you need
http://www.pavementsucks.com/forums/...000026#1000026

Aubrey · 12-11-2006, 08:49 AM

Thanks for the chart but I'm a little confused now. How can I swap out my 31 tooth gear for a 37 tooth gear without swapping out the internal piece as well? How can the internal, accepting 31 teeth, mate up with 37 teeth? You get a ring and pinion in a set. Isn't that the same case here? - thanks

11-24-2006, 05:20 PM	#1 (permalink)
Aubrey Registered User Join Date: Oct 2006 Member # 80341 Location: Colorado Posts: 70	Speedo Adjustment What's the best way to adjust the speedo on a 95? I thought I could just swap out the gear for a larger one but that doesn't seem to be the case. - thanks __________________ Poor ol girl is gettin wore out

11-24-2006, 09:37 PM	#2 (permalink)
jarvisjeep Registered User Join Date: Oct 2005 Member # 55381 Location: Rhododendron, Oregon Posts: 939	I've done a bunch of them with a scan tool. You have a list of tire sizes, then the one at the bottom of the screen says rev per mile. So you calculate revolutions per mile and there ya go. But you need a scan tool first. __________________ [COLOR="Lime"][CENTER]4x4 limo guy [URL="http://www.liftedlimo.com"] http://www.liftedlimo.com[/URL][/COLOR][/center]

11-28-2006, 08:49 PM	#3 (permalink)
BlueDodgeRam sc4wda Join Date: Oct 2006 Member # 80804 Location: Christiansburg, VA Posts: 803	i installed a superlift truspeed calibrator. really handy if you switch tire sizes or gear ratios, also adjusts tranny shift points its superlift part number #33002 __________________ Dodge Ram 1500/360ci/4link'd/backhalf'd/chro-mod D60/D70/5.13d, ARB'd, & welded/37" MTRs Build Thread - /forum/dodge/774229-joining-bandwagon-my-buildup-bluedodgeram.html '03 CTD QCSB, 6spd 4x4, II SPS 62/80, 4" Flo-Pro, Edge EZ/Smarty stack, DDP 90HP, FASS 150, Fab Fours bumpers, Warn 16.5ti Last edited by BlueDodgeRam; 11-28-2006 at 08:51 PM.

11-29-2006, 09:51 PM	#4 (permalink)
nhlbill Registered User Join Date: Jul 2006 Member # 75387 Location: Westminster, Co Posts: 78	What if you have a manual tranny like I do? Do these OBDII style programmers work for that? Or how about the Superlift style ones? Doesn't the Dodge have a 231 T-case like the Jeeps where you can just change out the speedo gear to the correct number of teeth for your gear/tire combo? __________________ 99 Ram 1500, 318, 5spd, 10" lift, 37's, D60's, geared, locked, etc....

11-29-2006, 10:06 PM	#5 (permalink)
BlueDodgeRam sc4wda Join Date: Oct 2006 Member # 80804 Location: Christiansburg, VA Posts: 803	mine just spliced into the ABS sensor wire and a fuse for power. should work __________________ Dodge Ram 1500/360ci/4link'd/backhalf'd/chro-mod D60/D70/5.13d, ARB'd, & welded/37" MTRs Build Thread - http://www.pirate4x4.com/forum/showthread.php?t=774229 '03 CTD QCSB, 6spd 4x4, II SPS 62/80, 4" Flo-Pro, Edge EZ/Smarty stack, DDP 90HP, FASS 150, Fab Fours bumpers, Warn 16.5ti

11-29-2006, 11:29 PM	#6 (permalink)
jarvisjeep Registered User Join Date: Oct 2005 Member # 55381 Location: Rhododendron, Oregon Posts: 939	Purchasing a one of those sensors and splicing into wires seems like a very long way around it. All you need is a real(real as in not 100 bucks at autozone, but of a tool truck) scan tool. You can correct tire sizes with like 8 button pushes and a calculator. At out work with out 10k scanner(think we have to pay for it!), we charge 41 bucks to change it if the guys an ass. If your not an ass, its like 30 bucks or so. OR you can splice into a VERY critical wire(abs). Then wait a year or so when that connection corrodes and the wire is now junk. Unless your splicing it a diffrent way then most of the kits I've seen do it in, this is inevitable. __________________ [COLOR="Lime"][CENTER]4x4 limo guy [URL="http://www.liftedlimo.com"] http://www.liftedlimo.com[/URL][/COLOR][/center]

12-05-2006, 08:10 PM	#8 (permalink)
Aubrey Registered User Join Date: Oct 2006 Member # 80341 Location: Colorado Posts: 70	It does but from the dealer, it's just the one gear. So you can't swap out one without swapping out the internal one too, right? And then that means tearing apart the t-case for all this mess. __________________ Poor ol girl is gettin wore out

12-07-2006, 03:17 PM	#9 (permalink)
latest project Registered User Join Date: Mar 2006 Member # 68506 Location: Statesville, NC Posts: 81	There is a gear on the t-case output shaft that spins the gear on the sensor, all you have to do is pull the sensor, swap out the gear and stick it back in. It is one bolt and takes maybe 5 minutes __________________ 1997 Dodge Ram lifted and locked on 37's 1986 Chevy C30 bagged dually

12-07-2006, 08:27 PM	#10 (permalink)
Aubrey Registered User Join Date: Oct 2006 Member # 80341 Location: Colorado Posts: 70	I can swap out my current 31 tooth gear with a gear of a different tooth count without swapping out the internal gear? __________________ Poor ol girl is gettin wore out

12-08-2006, 08:18 PM	#11 (permalink)
latest project Registered User Join Date: Mar 2006 Member # 68506 Location: Statesville, NC Posts: 81	yes, here's a link to the chart to figure out what gear you need http://www.pavementsucks.com/forums/...000026#1000026 __________________ 1997 Dodge Ram lifted and locked on 37's 1986 Chevy C30 bagged dually

12-11-2006, 08:49 AM	#12 (permalink)
Aubrey Registered User Join Date: Oct 2006 Member # 80341 Location: Colorado Posts: 70	Thanks for the chart but I'm a little confused now. How can I swap out my 31 tooth gear for a 37 tooth gear without swapping out the internal piece as well? How can the internal, accepting 31 teeth, mate up with 37 teeth? You get a ring and pinion in a set. Isn't that the same case here? - thanks __________________ Poor ol girl is gettin wore out

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