orangefj45
Supporting Vendor
We get lots of questions about split cases and gearing options, so we thought it’d be a good idea to compile a bunch of info and pics in one thread.
Sumo Gear company is our preferred vendor for rebuild kits, shafts, flanges and definitely gear sets. We have been working with them for many years, including the prototype 4:1 split case gear set for these cases.
We have built a few hundred split case combos for installation here at the shop, as well as supplying combos for customers nationwide.
We’ve discussed the different transmissions and shifters ( twin-sticks for the split cases ) on other threads, so this thread will focus on gearing options and machine work.
Sumo offers Two different low range gear sets for these transfer cases.
The first set keeps high range at a 1:1 ( direct drive ) ratio and lowers the low range to a 3.1:1, from the factory 2.28:1.
The other set they offer changes the high range to a 10% under-drive and offers a 4:1 low range ratio.
We keep their rebuild kits and gear sets in stock at all times.
Both gear sets require “clearancing” the rear case half. We have been working with a local machine shop, and once we reached our “4th generation” machine program, we were happy with the results. Our shop charges $195 to machine the cases for us.
The first pic shows a rear case half being machined.
Georg @ Valley Hybrids, Cruiser Brothers & Long Range America
ps: here’s a link to the split case video we put together a few years ago with the help of @Beno ; it’s his case I’m rebuilding in the video.
Sumo Gear company is our preferred vendor for rebuild kits, shafts, flanges and definitely gear sets. We have been working with them for many years, including the prototype 4:1 split case gear set for these cases.
We have built a few hundred split case combos for installation here at the shop, as well as supplying combos for customers nationwide.
We’ve discussed the different transmissions and shifters ( twin-sticks for the split cases ) on other threads, so this thread will focus on gearing options and machine work.
Sumo offers Two different low range gear sets for these transfer cases.
The first set keeps high range at a 1:1 ( direct drive ) ratio and lowers the low range to a 3.1:1, from the factory 2.28:1.
The other set they offer changes the high range to a 10% under-drive and offers a 4:1 low range ratio.
We keep their rebuild kits and gear sets in stock at all times.
Both gear sets require “clearancing” the rear case half. We have been working with a local machine shop, and once we reached our “4th generation” machine program, we were happy with the results. Our shop charges $195 to machine the cases for us.
The first pic shows a rear case half being machined.
Georg @ Valley Hybrids, Cruiser Brothers & Long Range America
ps: here’s a link to the split case video we put together a few years ago with the help of @Beno ; it’s his case I’m rebuilding in the video.
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