skinnyman has a 1L case and runs 32s, does a bit of crawling but it goes way to fast, still pushes them along ok, but too fast for rock crawling.
If you have a 1L case or can get one cheap, chuck it in, and save up for the crawler gears and fit them to your 1.3L at your leasure, then chuck the case in when it's ready and sell the 1L case
from the intermanet
==============
High Low
% Ratio % Ratio
Sierra Stock 1.409 2.268
Calmini 4.16: 12.2% 1.58 83.6% 4.16
Calmini 5.14: 18.3% 1.67 127% 5.15
Calmini 6.5: 20.2% 1.69 187% 6.51
Rocky Road 4.16: 12% 1.58 83% 4.16
Rocky Road 6: 24% 1.75 170% 6.12
Rocky Road 8: 24% 1.75 260% 8.16
Trail Tough 4.16: 12% 1.58 84% 4.24
Trail Tough 4.9: 16% 1.63 115% 4.88
Trail Tough 6.4: 17% 1.65 181% 6.37
Rockhopper S4: 24% 1.75 180% 6.35
Trail-Gear 6.5: 20% 1.7 187% 6.5
The above mentioned 'Sierra Stock' ratios of 1.409 and 2.268 only apply to 1300 NT, WT (leaf sprung only). So for those who have 1L, or coilies:
1-litre Sierra Stock (SJ-40): 1.580, 2.511
Coily Sierra Stock (SJ-80): 1.320, 2.123
Jimny
Stock 1.32 high, 2.145 low
Trialjimny gears 1.63 high (23%), 2.64 low (23%)
APIO gears 1.32 High (0%) 3.382 Low (58%)
Trialjimny and APIO gears 1.63 High (23%), 4.169 Low
(these are all with the CHAIN drive t/case )
Vitara
Low range ratio and reduction.
Stock 1.816
Rockhopper 4.16 129%
Rocky Road 4.4 142%
Calmini 4.24 134%
Trail Tough 4.24 134%
High range is 1:1 for all gears as there is no reduction available to the high range.
The crawler gears will fit all Vitara's '91 on and will fit GV's with a 1.6 4cyl auto & manual, 2.0 4cyl auto & manual and 2.5 V6 4 speed auto only.
===============