CV angle on ln130

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Camfitz30
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CV angle on ln130

Post by Camfitz30 »

I'm considering doing a lift on my surf tomorrow but I don't have any Manuel locking hubs to stop those front shafts spinning yet. I'm gonna do about a 2" sus lift on it and wondering if the cv angle will be to steep running the lift kit with auto hubs? Thoughts?
Trundle
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Re: CV angle on ln130

Post by Trundle »

you can drop the front diff quite easily or just go to manual hubs to give you cv boots a longer life for road use etc
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UBZ
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Re: CV angle on ln130

Post by UBZ »

Search is your friend , there a millon threads on here about IFS suspension lifts .......

to put it simply , you should not wind the front torsion bars up any more than 30mm above factory , or you will have no front suspension down travel . Making the truck dangerous on road and perform worse off road.
Last edited by UBZ on Sun Sep 22, 2013 8:27 pm, edited 1 time in total.
LR110 ..... LJ50 project :roll:
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Smurf
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Re: CV angle on ln130

Post by Smurf »

I have a set of IFS free wheel hubs, $200 if you are interested.
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tweake
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Re: CV angle on ln130

Post by tweake »

just get a diff drop kit or make one. its just two diff spacers and two swaybar spacers.
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lax2wlg
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Re: CV angle on ln130

Post by lax2wlg »

tweake wrote:just get a diff drop kit or make one. its just two diff spacers and two swaybar spacers.


You shouldnt need to do that unless you are doing 3" + susp lift.

Even then, on the Toyota IFS it isn't really a diff drop. Due to the design of the system, you can't drop the rear mount, so you're just pivoting the diff down, which can lead to oil starvation-->pinion failure. It also puts the front driveshaft at a steep angle that Toyota didn't plan for.

Ask all the yotatech and pirate guys
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tweake
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Re: CV angle on ln130

Post by tweake »

yes its a pivot not a straight drop. but its dropping the pinion end of the diff so no issue with oil starving. driveshaft angle is increased but its a trade off. you either have no drop and increased cv angles or fit the drop and have increased driveline angle.

for 2" drop you don't have to drop the diff but it does keep the angles close to factory and with factory hubs the cv's are always in use while the driveshaft isn't. considering cost and usage its better to save the cv's than the driveshaft.
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lax2wlg
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Re: CV angle on ln130

Post by lax2wlg »

Yeah but the CV angles will still be safely within factory specs, Toyota planned for it.. they didn't plan for the d/shaft to be all wonky.

Manual hubs should be a given?? Its heat that kills CV boots

yes its a pivot not a straight drop. but its dropping the pinion end of the diff so no issue with oil starving.


My bad thought it was the later model 7.5 high pinion diff. There is decent evidence to suggest diff drop-->inner pinion bearing problems on these
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tweake
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Re: CV angle on ln130

Post by tweake »

no manual hubs as per original post.
main thing is most do very little km's in 4x4 so front driveshaft does very little work. a change of angle on the drive shaft is not a lot and with minimal usage most do i doubt he would ever have a problem.
however breaking cv's is a much more common problem.
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