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727 Speedometer Pinion - Where To Buy One? #166846
12/13/08 04:14 PM
12/13/08 04:14 PM
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Kansas
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Menzaero Offline OP
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I have changed the gear in my 70 Dart from a 3:23 to a 3:55 and run 255-60/15 (27")tires on the back. I need a 35 tooth speedometer pinion gear; P/N 2538935 according to the Moparts tech section.

Where is a good place to get on of these?

Re: 727 Speedometer Pinion - Where To Buy One? [Re: Menzaero] #166847
12/13/08 04:29 PM
12/13/08 04:29 PM
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Lincoln Nebraska
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RapidRobert Offline
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our parts for sale sections probably transmissions


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Re: 727 Speedometer Pinion - Where To Buy One? [Re: Menzaero] #166848
12/13/08 05:27 PM
12/13/08 05:27 PM
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Answering the call of the wild
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ThermoQuad Offline
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Answering the call of the wild
Start with your local dodge dealer

Re: 727 Speedometer Pinion - Where To Buy One? [Re: ThermoQuad] #166849
12/13/08 06:22 PM
12/13/08 06:22 PM
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SE Michigan
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farmington Offline
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SE Michigan
mancini's

Re: 727 Speedometer Pinion - Where To Buy One? [Re: farmington] #166850
12/13/08 08:06 PM
12/13/08 08:06 PM
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I have NOS gears with 33 and 32 sorry no 35 teeth. Mike

Re: 727 Speedometer Pinion - Where To Buy One? [Re: Menzaero] #166851
12/13/08 08:24 PM
12/13/08 08:24 PM
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Rio Linda, CA
John_Kunkel Offline
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The math for the combo in the OP comes out to 34.4, when the decimal is less than .5 it's best to go with the smaller gear, this will make the speedo read a little high which avoids speeding tickets.

The number for some gears has changed, the new one for the 34 is 52068156.


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Re: 727 Speedometer Pinion - Where To Buy One? [Re: Menzaero] #166852
12/13/08 08:59 PM
12/13/08 08:59 PM
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Austin, Texas
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65Sat440 Offline
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I just ordered one from Yearone, listed for $29.95. They called and said the price is now $69.95!! I cancelled.

Let me know if you find a source for less $...

Re: 727 Speedometer Pinion - Where To Buy One? [Re: 65Sat440] #166853
12/13/08 10:26 PM
12/13/08 10:26 PM
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Rustylvania
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Mr_fixit Offline
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used ones on ebay..

Re: 727 Speedometer Pinion - Where To Buy One? [Re: Mr_fixit] #166854
12/13/08 10:35 PM
12/13/08 10:35 PM
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Northern MN
1E2C Offline
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There's a bunch of 'em listed in tranny parts here for a good price. Just bought a couple from him and it was a quick, easy deal. THEN I found out I need the short shaft style, still looking for a deal on one of them...
That's the way the cookie crumbles it seems.

Mike

Re: 727 Speedometer Pinion - Where To Buy One? [Re: 1E2C] #166855
12/13/08 10:45 PM
12/13/08 10:45 PM
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Lincoln Nebraska
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RapidRobert Offline
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do you have an actual measured 27" on your rear tires(s)? by putting a flat piece of stock on top of one of your rear tires & measuring from the bottom side if it down to the ground. tires of the same size but different brands will have a different height/circumference. Just want you to get it right the 1st time.


live every 24 hour block of time like it's your last day on earth
Re: 727 Speedometer Pinion - Where To Buy One? [Re: RapidRobert] #166856
12/14/08 12:13 AM
12/14/08 12:13 AM
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Kansas
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Menzaero Offline OP
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I'll go with the 34 tooth gear and it looks like there is one in the transmission section.

I am not sure if I have a long or short shaft and will pull it out tomorrow to make sure.

Thanks-

Re: 727 Speedometer Pinion - Where To Buy One? [Re: Menzaero] #166857
12/14/08 02:54 AM
12/14/08 02:54 AM
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Northern MN
1E2C Offline
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Mechanical speedo will be the long shaft, electronic speedo is the short shaft. How to tell? If it's an electrical connector with 3 wires hooked up it ain't mechanical. If it's got the sleeved cable coming off it ain't electronic. I think the short shaft speedo came about in the early 90's with the proliferation of computerization, but at any rate I'd be willing to wager a small confectionary yours is the mechanical speedo that will use the long shaft.
Mike
Oh, here's a pic showing the diff.....

Last edited by RamBlur; 12/14/08 02:55 AM.
Re: 727 Speedometer Pinion - Where To Buy One? [Re: 1E2C] #166858
12/14/08 03:45 AM
12/14/08 03:45 AM
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Riverside, Ca
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The "Bag" (ebay) $10-15 seems to the be going rate for used. NEW have gone out of sight. I paid $15 for a new 40t about two years ago now triple that.


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Re: 727 Speedometer Pinion - Where To Buy One? [Re: 65Sat440] #166859
12/14/08 10:37 AM
12/14/08 10:37 AM
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Coram, NY
Pool Fixer Offline
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Quote:

I just ordered one from Yearone, listed for $29.95. They called and said the price is now $69.95!! I cancelled.

Let me know if you find a source for less $...




I paid the 29.95 from them for one a few years ago...only to find out weeks later it was on backorder....I canceled it and found a used one on ebay.

Re: 727 Speedometer Pinion - Where To Buy One? [Re: John_Kunkel] #166860
12/14/08 11:01 AM
12/14/08 11:01 AM
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Posts: 6,095
Valencia, España
NachoRT74 Offline
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Quote:

I have changed the gear in my 70 Dart from a 3:23 to a 3:55 and run 255-60/15 (27")tires on the back. I need a 35 tooth speedometer pinion gear; P/N 2538935 according to the Moparts tech section.





Quote:


The math for the combo in the OP comes out to 34.4, when the decimal is less than .5 it's best to go with the smaller gear, this will make the speedo read a little high which avoids speeding tickets.

The number for some gears has changed, the new one for the 34 is 52068156.






I have same setup and got 34

http://cgi.ebay.com/ebaymotors/Mopar-Spe...p4506.m20.l1116

http://cgi.ebay.com/ebaymotors/Mopar-Spe...p4506.m20.l1116


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