http://www.petroworks.com/products.htm
http://www.rocky-road.com/zukdrive.html

I checked these links and found 4wd low range ratios, but the 2wd high range was still in percentages. Just take the stock 2wd ratio and figure the ratios out.

jo-jo
http://island4x4.com/ Vancouver Island, B.C., Canada...eh!

 

The stock transfer case has a high range of 1.41:1. My GRSII has a 18% high range reduction with a 4.89:1 low range. BTW, if your calculating crawl ratios, first gear tranny ratio is 3.625:1.

What's up DRM? I thought you were a Toyota guy. Are you thinking about building a Zuk?

crobbins@iswt.com
http://www.geocities.com/zuki_chris/

 

/wwwthreads_images/icons/wink.gif I am sticking to Toys, just wondering about the advantages of somehow making a Zuki transfer case fit in with a Toy case to get the high range reduction.

I did my math based simply on reverse calculations of what would be needed to make stock 4.10 gears "equal" 4.88 axle gears and that wouyld require a high range of 1.19:1

Even on the rather low comparison of 1.19:1, using 5.89 Toyota axle gears would yield an effective axle gearing of 7.01:1 - and that is pretty amazing /wwwthreads_images/icons/smile.gif

My basic idea would be to figure out how to use a Toy transfer case and a Zuki transfer case as a double setup.

Assuming a Toy case has a 1:1 high, 2.28:1 low, and the Zuki has a 1.4:1 high and a 2.36:1 low range, with a Toy 3.93 first gear and 4.88 axle gears:
-You get a high range crawl ratio of 26.85 (effectively the same as a normal Toy running 6.83 axle gears) 3.93*1.4*4.88=26.85
-You get a single Toy low range of 61.22 3.93*2.28*1.4*4.88
-You get a single Zuki low range of 45.26 3.93*2.36*4.88
-You get a low-low range of 103.2 3.93*2.28*2.36*4.88
-Add a Toy 4.7 gear set and get 212.72 /wwwthreads_images/icons/smile.gif

Anyway, just having fun running the numbers /wwwthreads_images/icons/smile.gif

 

I think Samurai gears would be a little light for a Toyota. I've looked at Yota T-case gears and they are substantially larger than
Sazuki pieces.
I was counting teeth on a GRS2 gearset the other day and I found that the reduction in high range is 15.6% greater than stock,
not the 18% I've seen published.

rollerskate
(That's what I was told my Samurai resembles)/wwwthreads_images/icons/mad.gif