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UTV's Off Road ( RZR, YXZ, Mini Buggy, Carts,etc.) => UTV Motor and Drivetrain => Topic started by: bitmatt on June 04, 2012, 07:18:56 PM

Title: cv joints and rack and pinion question
Post by: bitmatt on June 04, 2012, 07:18:56 PM
hi guys im building a dune buggy and i want to do independent rear suspension but i dont know anything about cv joints/axles i want to learn how they get put together and how to make them and with what. and one question about racks and pinions, what is the advatage of a rack and pinion? whats the difference with it and the type of system 4 wheelers use?
thanks
mat
Title: Re: cv joints and rack and pinion question
Post by: fabr on June 04, 2012, 07:27:31 PM
There's quite a bit of info about cv's here. Try a search to see what you find. Then ask questions. We're glad to help.
as to the rack compared to the 4 wheeler pivot is that bumpsteer can be designed out wheras there is no way I know of to eliminate bumpsteer with the pivot setup.Bumpsteer on long travel buggies MUST be eliminated or it will be a handling nightmare at best and deadly at worst.
Title: Re: cv joints and rack and pinion question
Post by: bitmatt on June 04, 2012, 07:33:50 PM
There's quite a bit of info about cv's here. Try a search to see what you find. Then ask questions. We're glad to help.
as to the rack compared to the 4 wheeler pivot is that bumpsteer can be designed out wheras there is no way I know of to eliminate bumpsteer with the pivot setup.Bumpsteer on long travel buggies MUST be eliminated or it will be a handling nightmare at best and deadly at worst.
and by long travel buggies its how much the suspension travels? i am not really looking to build a buggy to do any jumps its just to go ride in the trails and play in the mud so i wont want like 16" of suspension travel
Title: Re: cv joints and rack and pinion question
Post by: fabr on June 04, 2012, 08:02:15 PM
If you limit the suspension travel to just a few inches like a quad/4 wheeler typically have then the pivot will be fine. Up to a point. Just how big a buggy are you talking about?
Title: Re: cv joints and rack and pinion question
Post by: bitmatt on June 04, 2012, 08:38:29 PM
If you limit the suspension travel to just a few inches like a quad/4 wheeler typically have then the pivot will be fine. Up to a point. Just how big a buggy are you talking about?
its 60" wide and not sure how long itll be yet and its a two seater
Title: Re: cv joints and rack and pinion question
Post by: fabr on June 04, 2012, 08:42:22 PM
IMO,you want to go rack.
Title: Re: cv joints and rack and pinion question
Post by: bitmatt on June 04, 2012, 08:46:52 PM
IMO,you want to go rack.
ok thanks
Title: Re: cv joints and rack and pinion question
Post by: fabr on June 04, 2012, 08:49:44 PM
Due to the width a rack would b a far better choice that is,not that a pivot couldn't work. It just wouldn't be worth a crap IMO on a wider vehicle with even minimal travel needed..
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