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Discussion Starter · #1 ·
So I finally got around to bleeding my front disc conversion on my 99 300fw and I noticed that when the bike was in the air and stationary and I had the front brakes engaged that I couldn't turn the bars that easily. Obviously this is because as you turn side to side the hubs and rotors turn because of the front cv joints changing angles. Now I'm hoping that with some rotating mass and momentum that it won't be that hard to turn on the ground when in motion and the brakes applied.

Can anyone chime in on this?
 

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Do you have a front diff lock or spool? That would make a difference.
I'd say if you had a 424 that you wouldn't get that effect so much either.

A few guys on here have 424's fitted along with front disc conversions, I'm sure his is an easy answer for them. I'll be interested as I'm planning on fitting discs upfront too.
 
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Discussion Starter · #3 ·
Do you have a front diff lock or spool? That would make a difference.
I'd say if you had a 424 that you wouldn't get that effect so much either.

A few guys on here have 424's fitted along with front disc conversions, I'm sure his is an easy answer for them. I'll be interested as I'm planning on fitting discs upfront too.
Nothing up front except for a all stock front diff. No 424 so its 4wd all the time but even if it had a 424 it would do the exact same thing. When I was testing it the bike was not in motion or even running. The disc move a bit when turning from side to side because the cv's have to compensate when turned. If they turn left or right they also rotate at the same time. Which means the hubs and disc rotate too. Remember all this is happening when the bike is in the air and not running or moving.
 

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Hmm.. It must be caused by the CV's on the axles binding then. In theory it shouldn't happen but it obviously does. Have you given it a test run yet?
 

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Discussion Starter · #6 ·
The only thing I can see is that because the quad is in the air and the arms are down all the way that maybe the cv's are extended (plunged) out all the way. So it is turning the hubs a bit when turning the bars
 

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I don't know how they act with a front brake drum to disk mod, more than likely what your feeling is the clutch pack inside the front pumpkin slipping >while your 300 wheels are. Off the ground< as you have the front brakes aplyed while turning the handle bars, mine does the exact same, i don't think you'll notice this as much while riding, your right 424 will not change this, all it does is disconnect the front pumpkin from the transfer case, the front end just free wheels, but a 424 wheel make her steer super sweet!
 
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