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gearing my suzuki for tyres

Posted: Sun Jul 06, 2008 11:17 am
by slyvan1
thanks to all for forum discussions. i have spent months looking and searching.
i have a 83 lwb suzuki, i was going to do a v6 conversion and lux diffs, heaps of searching changed my mind.

i now have a straight gas, turboed, intercooled 1.3 g13b running 10psi all stock internals.really good driveable power. internal roll cage 2"body lift and 2" ome and some guard cutting on the way.

my question is and i have searched. i have a 1litre transfer case and diffs in it, i'm currently running 31s and i want to go to 33s. the current gearing is not low enough with 31s. what can i do to change my gearing. i'm under the understanding i can't put different gears in my transfer because the 1litre is different to the 1.3, and i read on a previous post the 1 litre diffs are different from 1.3 and aftermarket gears will not fit. looking for the cheapest way to change gearing.
thanks for any help :)

Posted: Sun Jul 06, 2008 11:47 am
by mrw82
I have a similar issue at the moment, only I am still running a 1 litre engine, transfer, diffs and 30" muddies. I was having heaps of trouble climbing hills due the gearing being out of whack.
I looked into crawler gears. Too expensive $$$$$$$

diff gears cant be changed without changing housings, changing housings could be beneficial though as you can put WT diffs under it on NT perches and get a better track, not sure of ratios or how much it will help.

what I am doing is a rocklobster which is equivelant to S1's, for me its worth it as I already have the 1L xfer gears and was able to get a hold of stock 1.3 gears for free from someone that had installed crawler gears. I have replaced ALL transfer case bearings at a cost of $100 and will get the required machining done through work at a very good price (not sure how much yet, have been told other places can do it for $200ish.
so at the very most it will cost me $300 all up.

this will not affect high range for me which is what I wanted but will significantly improve low range. I was made aware that 1 litre gears being lower than 1.3 most crawler gears wont affect high range anyway.

S1's are enough for me and would be enough for running 31"s aswell and lower gearset would likely be too low and make first gear useless in Low as the car will completely stop between gearchanges anyway. (i have seen it before)

hope this helps in some way.
Mark.

EDIT, just reread you want to go to 33"s, hopefully someone else knows how S1's go with 33"s.

Posted: Sun Jul 06, 2008 11:50 am
by joeblow
you might as well change the diffs.....your going to blow quite a few of the 1.0 litres up.

Posted: Sun Jul 06, 2008 12:07 pm
by Gwagensteve
If you have a 4WD light on the dash, you can fit aftermarket gears to your transfer.

You can fit LJ diff gears to 1.0 diffs, 4.56 lj80 or 4.88 lj50 *note mrw82* but slyvan1, with the power you have 4.1 diffs and a transfer case gearset will be fine.

There isn't a significant difference in strength between the 1.3 diffs and 1.0 diffs on their own, I gave my 1.0 diffs hell with lots of transfer gears and 34's and broke an axle, which is the same strength as a 1.3 axle. The problem with 1.0's is that there's no real upgrade parts available for 1.0 diffs, and the lack of self adjusting rear brakes and the NT width is a PITA.

Steve.

Posted: Sun Jul 06, 2008 12:16 pm
by slyvan1
when i bought the car i was told it had one litre diffs, whats the best way to check, it has self adjusting rear brakes and discs up front. transfer case has no switch on box for 4wd light. some one had played around with it a bit before i got it.