FOUR LINK OR TRIANGULAR
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FOUR LINK OR TRIANGULAR
Posted: December 27 2007 07:22 PM
 
JIM HILL (aka JIM636) [ View ] [ FORDEEPU@AOL.COM ] [ Car Ads ] [ Blogs ]
WYANDOTTE, Michigan
 
IM PUTTING AIR RIDE ON MY 40 THIS WINTER,JUST WANTED SOME INPUT. I HAVE HEAR THAT THE TRIANGULAR FOUR BAR IS BETTER FOR TIGHT TIRE CLEARENCE BUT MORE POINTS TO MOUNT.AND THE FOUR LINK IS EASYER TO MOUNT BUT HAS A LITTLE SIDE TO SIDE MOVEMENT. WHAT DO YOU GUYS THINK.
 
 
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Posted by bigdude  -  12/28/2007 10:41 AM
run a 4link and a panhard bar.
resident know it all [ View ] [ Email ] [ Blogs ] [ Car Ads ] Three Rivers, Michigan Charter Member since January 2004
 
Posted by jimmothershead  -  12/28/2007 11:33 AM
Yep, panhard bar runs from side of frame to bracket attached to pumpkin...no side to side movement. Triangulated was first used on "58 GM cars. I have used both. Most coil-overs have parrellel 4 link with panhard. Air ride has triangulated. Our orange 33 in this pic has 4 bar/coil-overs. Black '37 has triangulated/ bagged.

Tail pipe clearence is always a consideration when you hang a axel.

No problems, no fun with rods.

Jim.....Happy New Year !
Jim [ View ] [ Email ] [ Blogs ] [ Car Ads ] Huntingtown, Maryland
 
Posted by 31tudor  -  12/28/2007 12:13 PM
Both are very good designs but there are a few advantages to each. If you're going to drive it really hard I'd go with a four link and panhard bar... that's what NASCAR uses and those cars are hammered through the corners. The triangulated design uses one less bar and personally I think it looks much cleaner.


For tight clearances (like under a street rod) I'd recommend triangulated. A panhard bar is designed specifically to keep the axle centered, but the nature of the design allows side to side movement through the arc of the panhard bar's curve, plus the movement within the bushings. Like Jim said, consider your exhaust paths, a panhard bar can interfere with your route, so plan accordingly.


If there's so little clearance underneath that the tiniest lateral movement will cause tire rub, then the rear end choice shouldn't be your biggest concern. The axle doesn't just move up and down either. As you cross a driveway entrance at an angle the rear tires will camber in and out from the body and may rub then too. First and foremost, keep it safe!
Eric Hibbs [ View ] [ Email ] [ Blogs ] [ Car Ads ] St. George, Utah Charter Member since January 2002
 
Posted by JIM636  -  12/28/2007 06:19 PM
THANKS FOR THE INPUT.
JIM636 [ View ] [ Email ] [ Blogs ] [ Car Ads ] WYANDOTTE, Michigan
 
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