I've been doing the search thing with partial results, I bought sj51 LWB 88 mod, and it appears that it has two different diff ratio's, I wish to know
1) the rear diff removed 11 pinion teeth 43 crown wheel teeth,What ratio is it
2) have another 11 pinion 45 crown What ratio.
I have swapped the rear as it was noisey with the 11/45 but still have the same problem,skidding wheel when in 4wd. I also have a front 11/43 from coily, and some other diffs unknown as yet. Any idea's what my front ratio could be? I will be checking other diff hopefully on weekend, would prefer not to have to do front diff if possible.
If I jack up car so as one front wheel off ground and the rear on the same side off ground,two turns tailshaft almost one turn with the 11/45 a bit over one turn with the 11/43 which was in it at the start and the front does approx 1 1/8 of a turn
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Diff ratios
43/11= 3.9
45/11= 4.09
To get the ratio, grab a calculator and divide number of crownwheel teeth by the number of pinion teeth.
However, I'm not good with model variants.
If it's a Narrow track, it should have a 3.9 diff ratio.
If it's wide track, it should have a 3.7 diff ratio
Coil sierras also have a 3.9 diff ratio
Jimny's are 4.09
A front coil sierra diff will will not fit your axlehousing.
My guess is your front ratio is 3.7:1 - that's the most obvious - 4.09 in the back diff and 3.7 in the front diff will give you 1.105 turns on the front vs 1 turn in the back. That's pretty close to 1.125, which is 1 and 1/8.
If that's true, you have a pretty funny mix - you actually have JIMNY rear and WT Sierra front. You'd need to find another jimny rear to go in the front. Depending on your tyre size and transfer gearing, that's not a bad outcome though.
Steve.
45/11= 4.09
To get the ratio, grab a calculator and divide number of crownwheel teeth by the number of pinion teeth.
However, I'm not good with model variants.
If it's a Narrow track, it should have a 3.9 diff ratio.
If it's wide track, it should have a 3.7 diff ratio
Coil sierras also have a 3.9 diff ratio
Jimny's are 4.09
A front coil sierra diff will will not fit your axlehousing.
My guess is your front ratio is 3.7:1 - that's the most obvious - 4.09 in the back diff and 3.7 in the front diff will give you 1.105 turns on the front vs 1 turn in the back. That's pretty close to 1.125, which is 1 and 1/8.
If that's true, you have a pretty funny mix - you actually have JIMNY rear and WT Sierra front. You'd need to find another jimny rear to go in the front. Depending on your tyre size and transfer gearing, that's not a bad outcome though.
Steve.
[quote="greg"] some say he is a man without happy dreams, or that he sees silver linings on clouds and wonders why they are not platinum... all we know, is he's called the stevie.[/quote]
the 43/11 is a 3.9 centre
the 45/11 is a 4.1 centre..
just divide your ring y your pinion.The 3.9 is nt i believe and some maruti's had the 4.1????anyone else if im wrong
OH BUGGER STEVE WROTE TWICE AS MUCH AS ME AND STILL BEAT ME ignore my post
matt
the 45/11 is a 4.1 centre..
just divide your ring y your pinion.The 3.9 is nt i believe and some maruti's had the 4.1????anyone else if im wrong
OH BUGGER STEVE WROTE TWICE AS MUCH AS ME AND STILL BEAT ME ignore my post
matt
Last edited by Turbo Tonka on Fri Jun 12, 2009 6:07 pm, edited 1 time in total.
sierra truggy,37 sticky treps,propane,6.5s and disconnect,lux diffs with spools,16" fox shox,hydro steer.
if you where able to change the pinion flange to fit the 4.1, it has to be a jimny not a maruti centre. yes the coily rear will fit in your housing but at 3.9 do you want it to? sounds like it its the front diff that needs to be changed, or get a 3.7 rear to see if it matches the front. i'd be inclined to pull the front out and count the teeth. bit of mucking around but will take all the guess work out of it and may be quicker in the long run
WANTED: swb vitara rear seat. the 3 seater bench type
for sale: wt diffs, snake hi steer, maruti 4.1 wt centres,
for sale: wt diffs, snake hi steer, maruti 4.1 wt centres,
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