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| sierra diffs https://auszookers.com/forum/viewtopic.php?f=5&t=21928 |
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| Author: | jimbo_jones [ Sat May 14, 2011 12:19 am ] |
| Post subject: | sierra diffs |
I have some 1.3 n/t diffs would the carriers and centers fit my w/t diffs thinking of keeping the centers and selling of the axles jimbo |
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| Author: | zooky08 [ Sat May 14, 2011 12:56 am ] |
| Post subject: | Re: sierra diffs |
The centers should be 3.9 ratio I just put nt 1.3 centers in my wt diffs |
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| Author: | Zook_Fan [ Sat May 14, 2011 12:59 am ] |
| Post subject: | Re: sierra diffs |
Yes they will fit in the WT diffs, but as zooky08 said they are a different ratio to WT so they have to be put in as a pair. |
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| Author: | jimbo_jones [ Sat May 14, 2011 2:52 am ] |
| Post subject: | Re: sierra diffs |
Zook_Fan wrote: Yes they will fit in the WT diffs, but as zooky08 said they are a different ratio to WT so they have to be put in as a pair.
cool thanks and yeah I have the matching pair |
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| Author: | lumpy_zook [ Sat May 14, 2011 9:12 am ] |
| Post subject: | Re: sierra diffs |
by this talk, i assume NT has a lower ratio? (better for crawling?) or is it that much of a small difference its not worth the hassle? |
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| Author: | zooky08 [ Sat May 14, 2011 9:29 am ] |
| Post subject: | Re: sierra diffs |
Nt centers won't fit a wt housing Only nt 1.3 centers fit in a wt housing Not sure if there's a big difference between 3.7 and 3.9 ratios But crown and pinion gears aren't like transfer gears |
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| Author: | steak_knife [ Sat May 14, 2011 9:31 am ] |
| Post subject: | Re: sierra diffs |
zooky08 wrote: Nt centers won't fit a wt housing
Only nt 1.3 centers fit in a wt housing Not sure if there's a big difference between 3.7 and 3.9 ratios But crown and pinion gears aren't like transfer gears N/t 1lt center's...... & 
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| Author: | alien [ Sat May 14, 2011 9:31 am ] |
| Post subject: | Re: sierra diffs |
changing diff gears is a better way of addressing larger tyres though, as it puts less strain on the tcase. changing from 3.7 to 3.9 is a 5.4% difference, so would bring your 215/75r15 tyres back to factory gearing. |
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| Author: | steak_knife [ Sat May 14, 2011 9:34 am ] |
| Post subject: | Re: sierra diffs |
steak_knife wrote: zooky08 wrote: Nt centers won't fit a wt housing Only nt 1.3 centers fit in a wt housing Not sure if there's a big difference between 3.7 and 3.9 ratios But crown and pinion gears aren't like transfer gears N/t 1lt center's...... & Should of added more... The Lt N/t are lt, won't fit 1.3, but 1.3 w/t to n/t fit ( 1.3) & IF A REDUCTION OF GEARING IS MADE, NO MATTER HOW SMALL, YOU ( fucking cap's lock) are at an advantage..... |
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| Author: | zooky08 [ Sat May 14, 2011 9:43 am ] |
| Post subject: | Re: sierra diffs |
alien wrote: changing diff gears is a better way of addressing larger tyres though, as it puts less strain on the tcase. changing from 3.7 to 3.9 is a 5.4% difference, so would bring your 215/75r15 tyres back to factory gearing. Ahk ok thanks
What's the ratio % of a tyre size of 30inch Ill be having 3.9 diff ratios with 4.16 transfercase gears for my 30's and I'm not sure if thats going to work well |
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| Author: | alien [ Sat May 14, 2011 10:16 am ] |
| Post subject: | Re: sierra diffs |
30s are around 15% larger... 4.16tcase gives 12% high range doesnt it? add the 5% in diff reduction and you're onto a winner i reckon. |
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| Author: | Fatzook [ Sat May 14, 2011 10:20 am ] |
| Post subject: | Re: sierra diffs |
alien wrote: 30s are around 15% larger... 4.16tcase gives 12% high range doesnt it? add the 5% in diff reduction and you're onto a winner i reckon.
4.1's give a 1.3L a 12% reducion in high. But 0% reduction for a 1L, as the high range ratios are the same. |
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| Author: | zooky08 [ Sat May 14, 2011 10:23 am ] |
| Post subject: | Re: sierra diffs |
I have a 1.6l  
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| Author: | Fatzook [ Sat May 14, 2011 10:32 am ] |
| Post subject: | Re: sierra diffs |
zooky08 wrote: I have a 1.6l
So? You have a 1.3L transfer? Then 4.1's will give a 12% reduction. If you had a 1.6L with a 1L case, then fitted 4.1's you would get no change in high range. A B C D E F .......... 
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| Author: | zooky08 [ Sat May 14, 2011 10:39 am ] |
| Post subject: | Re: sierra diffs |
Yea I will have a 1.3 case fitted with LWOR 4.1 gears 3.9 diff gear, 30's and running a g16a engine |
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