Help me sierra owners!!!
What diff ratio's are available for a Sierra, i need teeth count as well
I need something with a tooth count on the crown wheel of around 45
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| Sierra Diff Tooth Count https://www.auszookers.com/forum/viewtopic.php?f=5&t=34442 |
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| Author: | stocker [ Tue Jul 24, 2012 8:36 pm ] |
| Post subject: | Sierra Diff Tooth Count |
Help me sierra owners!!! What diff ratio's are available for a Sierra, i need teeth count as well I need something with a tooth count on the crown wheel of around 45 |
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| Author: | atari4x4 [ Tue Jul 24, 2012 8:50 pm ] |
| Post subject: | Re: Sierra Diff Tooth Count |
i think it's a no go in the suzuki range, somewhere on here is a list of tooth counts |
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| Author: | stocker [ Tue Jul 24, 2012 9:24 pm ] |
| Post subject: | Re: Sierra Diff Tooth Count |
Thanks Atari... I found the vitara one in 'good tech' after searching for a bit but I cant find one for sierras... |
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| Author: | atari4x4 [ Tue Jul 24, 2012 9:35 pm ] |
| Post subject: | Re: Sierra Diff Tooth Count |
i thought it had both. 
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| Author: | 303zuke [ Tue Jul 24, 2012 10:49 pm ] |
| Post subject: | Re: Sierra Diff Tooth Count |
stocker wrote: I need something with a tooth count on the crown wheel of around 45 Why that specific number of teeth? On a small ring gear like the Sierra, that many teeth will be fairly weak compared to other R&P sets with less teeth. AFAIK, thse are the ratios available for 1.3 Sierra diffs: 3.727= 41/11 (WT Sierra) 3.909= 43/11 (NT Sierra) 4.09= 45/11(Jimny) 4.11= 37/9 (WT Maruti) 4.3= 43/10 (GV front) 4.556= 41/9 (US Aftermarket) 4.625= 37/8 (Vit Auto front) 4.875= 39/8 (GV front) 5.125= 41/8 (Vit Manual front) |
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| Author: | stocker [ Wed Jul 25, 2012 8:46 am ] |
| Post subject: | Re: Sierra Diff Tooth Count |
Look I don't know much about what I'm proposing hence a bit of research Could you perhaps combine 2 different sets of r&p and crown wheels together?? Ie: 8 tooth pinion out of my centre with a 43 tooth crown wheel from a gv??? |
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| Author: | BlueSuzy [ Wed Jul 25, 2012 9:25 am ] |
| Post subject: | Re: Sierra Diff Tooth Count |
Pinion and crown are a matching gearset. They have to intertwine perfect. So mix/match ratio parts are a no go. Different ratios gears will be a poofteenth different size, and makes lap timing different, hence, different ratios. Just swap a whole set. |
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| Author: | stocker [ Wed Jul 25, 2012 2:05 pm ] |
| Post subject: | Re: Sierra Diff Tooth Count |
BlueSuzy wrote: Pinion and crown are a matching gearset. They have to intertwine perfect. So mix/match ratio parts are a no go. Different ratios gears will be a poofteenth different size, and makes lap timing different, hence, different ratios. Just swap a whole set. Thankyou well that answers my question. However the area i have highlighted is my problem... To What might I ask? I am already running a 5.125 - 1 ratio |
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| Author: | tanshi [ Wed Jul 25, 2012 2:18 pm ] |
| Post subject: | Re: Sierra Diff Tooth Count |
for a sierra you have the option of these i guess http://www.lowrangeoffroad.com/index.ph ... egory/620/ |
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| Author: | 303zuke [ Wed Jul 25, 2012 10:17 pm ] |
| Post subject: | Re: Sierra Diff Tooth Count |
stocker wrote: BlueSuzy wrote: Just swap a whole set. However the area i have highlighted is my problem... To What might I ask? I am already running a 5.125 - 1 ratio If you're already running 5.125 diffs in a Sierra and NEED to go lower, I'd be investigating Transfer Gearing. |
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| Author: | stocker [ Thu Jul 26, 2012 11:45 pm ] |
| Post subject: | Re: Sierra Diff Tooth Count |
transfer only effects low range mate, i need hi range re gearing... i have approached a Diff company about a custom ring and pinion set for the rear. will wait to see what they come back with $$$ wise |
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| Author: | BlueSuzy [ Thu Jul 26, 2012 11:53 pm ] |
| Post subject: | Re: Sierra Diff Tooth Count |
stocker wrote: transfer only effects low range mate, i need hi range re gearing... i have approached a Diff company about a custom ring and pinion set for the rear. will wait to see what they come back with $$$ wise Yeah your being confused in asking a sierra question, but owning a vitara(avatar) |
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| Author: | tanshi [ Fri Jul 27, 2012 8:51 am ] |
| Post subject: | Re: Sierra Diff Tooth Count |
look at an undertaker, will be cheeper than custom diffs |
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| Author: | stocker [ Fri Jul 27, 2012 11:43 am ] |
| Post subject: | Re: Sierra Diff Tooth Count |
BlueSuzy wrote: stocker wrote: transfer only effects low range mate, i need hi range re gearing... i have approached a Diff company about a custom ring and pinion set for the rear. will wait to see what they come back with $$$ wise Yeah your being confused in asking a sierra question, but owning a vitara(avatar) No I am not mistaken in asking what ratios are available for a sierra as a bit front is the same as a sierra rear this would then only require a custom vitara rear to be manufactured. We will see when I get a quote back
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| Author: | zooker [ Fri Jul 27, 2012 5:39 pm ] |
| Post subject: | Re: Sierra Diff Tooth Count |
edit, misread the car he actually has |
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| Author: | atari4x4 [ Fri Jul 27, 2012 5:46 pm ] |
| Post subject: | Re: Sierra Diff Tooth Count |
 gus is confused  custom width sierra front diff with a new custom longer short side hi-tuff axle + chromos = SAS VIT? |
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| Author: | TZAR [ Fri Jul 27, 2012 5:58 pm ] |
| Post subject: | Re: Sierra Diff Tooth Count |
so its too fast in high range???? Custom Diffs = Equals bubba ramming his cock up your arse at high speed = getting reamed good Why not look at different diffs if you want more reduction IE hilux 5.88 cheaper than custom and MUCH easier to replace if needed |
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| Author: | stocker [ Fri Jul 27, 2012 6:08 pm ] |
| Post subject: | Re: Sierra Diff Tooth Count |
oooooooooooookayyy... No gus no solid axle swapsies... The idea was that i could correct the Spastic gearing i have at the moment. Currently 5.125 on 31's Is horrid... there is no such thing as 5th gear on anything other than down hill. and driving in 4th everywhere means your revving the tits out of it on the express ways. ...So my thoughts were. Replace the Front R&P with a commonly available sierra R&P Set. Now as we are all aware higher ratio R&P sets are few and far between for the Vits. So i would get a Custom R&P Set manufactured to suit the Commonly available Sierra R&P say like the 5.38 Set that LROR sell to correct my horrible gearing. Now obviously i have to do a few calculations to find out exactly how high i will have to go to get as close to driving like stock as possible. ...Well thats my idea anyway... |
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| Author: | TZAR [ Fri Jul 27, 2012 6:45 pm ] |
| Post subject: | Re: Sierra Diff Tooth Count |
What about adding a sierra transfer case and getting higher diff ratios Vitarad is 1.1 high range/ something lowrange Sierra is 1.4 high range/ 2.2 low range This would give you a choice of HH HL LH LL. This si a guanausteve one to answer as this sort of question is right up his alley. |
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| Author: | 303zuke [ Fri Jul 27, 2012 10:50 pm ] |
| Post subject: | Re: Sierra Diff Tooth Count |
stocker wrote: The idea was that i could correct the Spastic gearing i have at the moment. Currently 5.125 on 31's Is horrid... there is no such thing as 5th gear on anything other than down hill. and driving in 4th everywhere means your revving the tits out of it on the express ways. ...So my thoughts were. Replace the Front R&P with a commonly available sierra R&P Set. Now as we are all aware higher ratio R&P sets are few and far between for the Vits. So i would get a Custom R&P Set manufactured to suit the Commonly available Sierra R&P say like the 5.38 Set that LROR sell to correct my horrible gearing. Now obviously i have to do a few calculations to find out exactly how high i will have to go to get as close to driving like stock as possible. Well, now that you've explained yourself better.... 5.38s probably won't help you. The difference between 5.125 and 5.375 gearing is LESS THAN 5%. That is 50rpm per 1000. So if your doing 6000rpm in 4th now, an exxy custom made rear diff in 5.38 ratio will bring your revs down to 5700rpm. Worth the cost? A more cost effective solution would be either an Undertaker transfer, or completely new Dana diffs F + R in a significantly lower ratio like 6.17. |
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| Author: | twitchy [ Sat Jul 28, 2012 8:21 am ] |
| Post subject: | Re: Sierra Diff Tooth Count |
If the sierra is in Ipswich, Tasmania or Cullen Bullen I'd say the diff would have about 3 teeth.....
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| Author: | sideways [ Sat Jul 28, 2012 9:22 am ] |
| Post subject: | Re: Sierra Diff Tooth Count |
You need a set of these. 1.3:1 reduction and more awesomeness than an Vitara can Handle. viewtopic.php?f=14&t=4251&start=390 Will be cheaper than a custom R&P too. 
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| Author: | stocker [ Mon Jul 30, 2012 9:09 pm ] |
| Post subject: | Re: Sierra Diff Tooth Count |
sideways wrote: You need a set of these. 1.3:1 reduction and more awesomeness than an Vitara can Handle. viewtopic.php?f=14&t=4251&start=390 Will be cheaper than a custom R&P too. that would be awesome! but engineering? Some more food for thought over the last few days. How do the XL7 Diff's hold up to 31's (that is the Non-steel versions)??? |
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