first surf build.

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Checkerhead
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Re: first surf build.

Postby Checkerhead » Sat Feb 09, 2019 8:57 pm

You'll be able to bolt on the Prado box with all factory parts. The sideways offset likely won't worry your driveshaft since your vertical offset is probably more than your horizontal offset and the drive shaft only cares about max compound angle. You'll likely find it make maybe 10% difference and that'll only be at full drop.

For example:
If your T-case was centred, but with the diff 300 mm lower (at full droop) your total offset is 300 mm.
If you T-case is 150 mm offset, and the diff is 300 mm lower, then your total offset is 335 mm.
If we (willy nilly) assume that your drive shaft is 800 mm long (uj centre to uj centre) then your angle for each uj goes from 10.3 degrees to 11.4 degrees.
Now that's not insignificant by any means, but for the number of K's your doing, the reduced life isn't going to bother you.
There are a couple of winch trucks in Taupo that have run the Prado case with Saf diff for years. That's also how I'm building mine.

Note, I've assumed your flanges are parallel when I stated those angles. At full droop my flanges are not parallel, or even close, and I'm a little worried about it. But if I never finish it, it won't break! :D :(
Supercharged VH45 Surf safari winch truck in the making
viewtopic.php?f=18&t=33527&hilit=checker%2A

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skidmark
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Re: first surf build.

Postby skidmark » Sat Feb 09, 2019 9:14 pm

that's very helpful info you always come through with Arron, much appreciated. I've got most parts of the puzzle there, im confident the rear will be ok, but the front driveshaft would be reduced to 500 or 550 (200shorter than current )overall length. that is the bit that potentially concerns me re angles and bind.

havent had time to measure heights and angles from flange to flange yet though
modified surf, hardly drive it seem to keep modifying it....

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Checkerhead
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Re: first surf build.

Postby Checkerhead » Sat Feb 09, 2019 9:32 pm

Oh yeah that sounds a bit drastic.

I say chop EVERYTHING behind the B-Pillar off and remove the firewall. Move the engine back to make the front drive shaft longer and then rebuild the back end in full truggy mode (including PTO driven God winch) and go racing!
Supercharged VH45 Surf safari winch truck in the making
viewtopic.php?f=18&t=33527&hilit=checker%2A

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skidmark
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Re: first surf build.

Postby skidmark » Sun Feb 10, 2019 8:09 am

Checkerhead wrote:Oh yeah that sounds a bit drastic.

I say chop EVERYTHING behind the B-Pillar off and remove the firewall. Move the engine back to make the front drive shaft longer and then rebuild the back end in full truggy mode (including PTO driven God winch) and go racing!


that might be a little drastic haha
I'll come up with a solution at some point
modified surf, hardly drive it seem to keep modifying it....

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skidmark
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Location: hamilton

Re: first surf build.

Postby skidmark » Sun Feb 10, 2019 4:49 pm

I did briefly search for a twin transfer or something along the lines of that to push it backwards, but that doesn't seem to exist for these transfer/trans.
I have collected a hzj79 transfer/the correct extension housing to go from lex auto to transfer.(thanks big)
have a step up ag box to drive the hydro pump through..

unless theres a genius way to drive the hydro I cant come up with?
saw 4wdstuffs Suzuki at the trials with crank drive, but I have a radiator in the way.. dont have much(any) room to run additional belts or gears/chains from front pulley.

might be a dream for a while longer.

did see a man on youtube modify a hilux gear drive transfer to accept a cruiser pto, but learnt my lesson and would like to try keep this somewhat unmodified parts.
20190209_090738.jpg


picture of our little disaplay at trials for something to look at
modified surf, hardly drive it seem to keep modifying it....

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