So how big of a tire do you think I can run on a splitcase t-case?
splitcase FJ60 how big of a tire?
- Thread starter cruzila
- Start date
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
Several guys I know are running 39's with no problem.
I think the axles will snap before the T-case will crack.
I think the axles will snap before the T-case will crack.
I agree.
your weak point is axles even with polys and longs.
then its how much power and gear reduction and your driving style.
I fully plan on running 39.5's on my 60 when i go SOA, and i think 42's are still in the playing area if you have other drivetrain to hold them. I know josh baker is running 42's on his 60 buggy but im pretty sure he is on tons and i have no idea what he is sportin for the rest of the drivetrain so it may not be a very good example.
your weak point is axles even with polys and longs.
then its how much power and gear reduction and your driving style.
I fully plan on running 39.5's on my 60 when i go SOA, and i think 42's are still in the playing area if you have other drivetrain to hold them. I know josh baker is running 42's on his 60 buggy but im pretty sure he is on tons and i have no idea what he is sportin for the rest of the drivetrain so it may not be a very good example.
- Thread starter
- #4
So given axles are 14b and everything else is beefy enough, where is the limitation in the splitcase?
Is 14B = Corporate 14 Bolt?
I don't think I've ever seen anyone blow up a split case.
- Thread starter
- #7
That is where I am going with this. The outputs seem massive when compared to the early 3-4 speed cases. If those can hold up to 37-39's it seems the splitcase output, especially the front, would hold up to more.
I would send the question to Poser or OrangeFJ45. They build cases and have seen what breaks and have knowledge on why it broke.
Tapage
Club 4X4 Panamá
I never seen a BF1A broken even with V8 with good HP on top .. if would depends on your right foot, engine, tires, weight and kind of surfaces for off road ..
orangefj45
Supporting Vendor
plain and simple; gearing.
i think that the split case is probably the best case toyota ever produced. i like them a lot. i just wish that somebody would make a 4:1 gear set for them. i have brought this up to several manufacturers/vendors but everybody is really watching their pennies these days and they can't afford to take a risk.
i think a low geared split case would be superrior to the orion, hand down.
i realize that mark;s from oz makes a gear set for these but they run notoriously hot and noisy, besides, the low range is only 3.15:1
scotty, if you need a split case to tinker with, hit me up. i have a few at the shop nd would be more than happy to set you up with a loaner for some "research".
georg @ valley hybrids
the case would likely give before anything else would inside it, would it not? (presuming big enough tires and power)
Last edited:
- Joined
- Apr 4, 2006
- Threads
- 162
- Messages
- 4,044
- Location
- Hillsboro, OR
- Website
- www.cascadecruisers.com
I never broke mine running 39.5s and 4.0 crawl box in front of it....
Tapage
Club 4X4 Panamá
still a good option .. ran mine with marks gears for 5 years or so .. and cetranly are more noisy than stock gears nothing that sound more than a MT tires on the HW ..
Your axle gearing is a big variable on how much stress you place on the t-case. A lot of the mini truck guys that were snapping outputs have been able to make them live by switching from 4.10's to 5.29's
my next gear set will be goin from 4.56 to 5.29 in my 60...
has anybody come up with clocking these yet?
