NCLNDYM Posted January 26, 2012 Report Share Posted January 26, 2012 Well just picked up my rebuilt dogleg. They didn't put the speedo gear back. No one bothered to notify me the gears on it were trashed, such a disappointment. So my question is, Is the speedo gear from my stock 4 spd the same as the one in my dogleg? dogleg spd Upon research its called a pinion gear Quote Link to comment
ggzilla Posted January 26, 2012 Report Share Posted January 26, 2012 Unknown if it is the same, but it will bolt in. Quote Link to comment
datzenmike Posted January 26, 2012 Report Share Posted January 26, 2012 Easy fix. You just need to replace the plastic pinion gear like the ones below. (these are just for showing purposes) The one on the left I found in a 510 4 spd. The outer housing or sleeve is identical between the 510 and the 200sx dogleg but the pinion gear is different. The 200sx pinion (BLACK) 17 tooth is 32703-N9017 less than $15. To remove the old one just punch out the roll pin on the narrow part of the neck just below the plastic cog. The 'O' ring is 32710-14600 . Quote Link to comment
NCLNDYM Posted January 26, 2012 Author Report Share Posted January 26, 2012 Would that be a dealer item? Quote Link to comment
ggzilla Posted January 26, 2012 Report Share Posted January 26, 2012 Since you already have a good one for the 510, why go to the Nissan dealer to buy a different one? One reason would be if your speedometer wasn't reading correctly before, you can adjust it with a different size gear. Quote Link to comment
Laecaon Posted January 26, 2012 Report Share Posted January 26, 2012 Wouldnt you want to use the 4 speed one as that is probably the same as what is in the rear end? Unless you are trying to account for tire size discrepancy. Quote Link to comment
NCLNDYM Posted January 26, 2012 Author Report Share Posted January 26, 2012 Ok, so the one in my 4spd will go straight over the dogleg, not sure if speedo is correct, I'm running 14's currently 185-60 Quote Link to comment
ggzilla Posted January 26, 2012 Report Share Posted January 26, 2012 not sure if speedo is correct Well then no reason to buy a new gear. First find out if it's correct, then you'll know whether to go up one tooth size or down one tooth. Quote Link to comment
ggzilla Posted January 26, 2012 Report Share Posted January 26, 2012 Mike, if all four gears fit on the same sleeve: ... which ones require a different offset sleeve? Only the 71-series transmissions? Quote Link to comment
datzenmike Posted January 26, 2012 Report Share Posted January 26, 2012 Mike, if all four gears fit on the same sleeve: ... which ones require a different offset sleeve? Only the 71-series transmissions? Those are for the 620/280z/zx 5 speed and only for showing the pinion.That's a good question. More teeth means it will increase in diameter. If a larger diameter is is used, would it not be crushed against the drive gear inside????? I've asked other forums and still don't know. Quote Link to comment
datzenmike Posted January 26, 2012 Report Share Posted January 26, 2012 Since you already have a good one for the 510, why go to the Nissan dealer to buy a different one? One reason would be if your speedometer wasn't reading correctly before, you can adjust it with a different size gear. Only the plastic part is destroyed and is replaceable. The 510 and the dogleg are both 17 tooth (BLACK) cogs but they are different part numbers so they could very well be different in some small not obvious way. The correct one is 200sx pinion (BLACK) 17 tooth is 32703-N9017 Quote Link to comment
ggzilla Posted January 26, 2012 Report Share Posted January 26, 2012 If a larger diameter is is used, would it not be crushed against the drive gear inside????? I've asked other forums and still don't know. It won't crush it for several sizes. The drive gear (on the output shaft) can work with a variety of different size driven gears. Same as GM, Ford, Chrysler. But once the difference gets too big they either use different drive gears or an offset position. On most of the Datsun transmissions you can't change the drive gear, it's cut into the output shaft. On the 71-series the drive gear is removable but Nissan don't seem to have but only the one. Quote Link to comment
HRH Posted January 26, 2012 Report Share Posted January 26, 2012 Last time I looked at the dealer for those speedo cogs, they were unobtainium, just sayin'. I'm going to go programmable speedometer in the 510. Lot more accurate anyway. Also more expensive. <_< Quote Link to comment
NCLNDYM Posted January 26, 2012 Author Report Share Posted January 26, 2012 So i guess for now I'll use the one from my 4 spd, then when i get the rims i want ,t, I'll adjust it then with a new gear if I can find them Quote Link to comment
DailyDato Posted January 27, 2012 Report Share Posted January 27, 2012 Could anyone provide a p/n on the blue 3.70 speedo cog please? Quote Link to comment
DailyDato Posted January 27, 2012 Report Share Posted January 27, 2012 and would anyone know if it would corresponde well to the FS5W71C in my 620, 3.70 rear gear, 235-45-17s? id do the math to make sure, but im unsure of the thooth count on my drive gear in my tranny, and dont know the required ratio to equal what rpms of the cable to get my speedo accurate to say 50mph..... Quote Link to comment
datzenmike Posted January 27, 2012 Report Share Posted January 27, 2012 The outer housing or sleeve is identical between the 510 and the 200sx dogleg but the pinion gear is different. The 200sx pinion (BLACK) 17 tooth is 32703-N9017 less than $15. . Just saying the 510 4 speed and the 200sx dogleg have different part numbers for the 17 tooth pinion assembly. No harm in trying it. It may work. Quote Link to comment
datzenmike Posted January 27, 2012 Report Share Posted January 27, 2012 Could anyone provide a p/n on the blue 3.70 speedo cog please? For what year and vehicle? Quote Link to comment
ggzilla Posted January 27, 2012 Report Share Posted January 27, 2012 Pinions 63A 5-speed: 32703-N9017 17T (200SX) 63L 4-speed: 32703-22001 17T (510) Bummer. Well they only $15. I would put the old one in and see how it works. Quote Link to comment
datzenmike Posted January 27, 2012 Report Share Posted January 27, 2012 Nothing to loose. Quote Link to comment
DailyDato Posted January 27, 2012 Report Share Posted January 27, 2012 soory mike forgot to specify, its a 77 620 Quote Link to comment
5t341tH Posted July 24, 2016 Report Share Posted July 24, 2016 somebody help me! well I just finished swapping a 280z 5 speed into my 620. Now my speedometer reads way too high. Actual speed of 45mph reads 60mph on the speedometer. I looked at the pinion gear and it's black. Which color should i get to help it be closer to my actual speed? Quote Link to comment
datzenmike Posted July 24, 2016 Report Share Posted July 24, 2016 If you are positive it's from a '75-'78 Z, just swap your RED 20 tooth 620 speedo pinion sleeve with gear in. Quote Link to comment
5t341tH Posted July 25, 2016 Report Share Posted July 25, 2016 I had the auto 3 speed before. I don't remember what color the gear was but I was sure the whole thing didn't fit into the 5 speed Quote Link to comment
datzenmike Posted July 25, 2016 Report Share Posted July 25, 2016 Yeah, the auto sleeves are different. Any '74-'78 620, will have a RED 20 tooth. Or find one 1 Quote Link to comment
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