RCCrawler Forums

MNorby · 03-23-2007, 08:03 PM

Every leaf spring setup I see the front end the shackle is on the front side of the springs. Is there a reason why not on the rear like the early Chevy trucks use? Maybe something to do with pinion angle under full droop?

cabsover78 · 03-23-2007, 08:27 PM

are only looking on jeeps and sammy? beacuse most trucks come with shackles in the back. They just came like that i don't know y but ask some jeep guy and he'll know. I just know the difference about tension and compression shackles. just my .2 $.

MNorby · 03-23-2007, 10:16 PM

seems like every scale RC with leaves I've seen are that way. I could image for jeeps and fords and such that are factory but even the chevys I have seen seem to have the shackle in the front.Just curious if there is a build reason on a RC or something. I know why either works in the rear 1:1 just curious on the RCs is all.

slobin3d · 03-23-2007, 10:22 PM

pinion angle has some part to do with it, on a 1:1 street truck the will never see teh extreme twist and flex of a crawler setup truck, also with the shackles in the rear it give a more comfortable ride to the passenger. since most of the shock to the suspention will be moving front to back the spring will compress backwards and absorb it, with the shackle in the front the shock of an impact is transfered to the fixed end of the spring and then transfered to the chassis then to the driver

MNorby · 03-23-2007, 11:56 PM

right, I figured pinion angle had to be the reason but just wanted to see on a RC.

03-23-2007, 08:03 PM	#1
MNorby Rock Crawler Join Date: Jan 2007 Location: Northern Wyoming Posts: 904	Leaf spring shackle questions Every leaf spring setup I see the front end the shackle is on the front side of the springs. Is there a reason why not on the rear like the early Chevy trucks use? Maybe something to do with pinion angle under full droop?

03-23-2007, 08:27 PM	#2
cabsover78 Pebble Pounder Join Date: Jan 2007 Location: drunken Duncan B.C Posts: 189	are only looking on jeeps and sammy? beacuse most trucks come with shackles in the back. They just came like that i don't know y but ask some jeep guy and he'll know. I just know the difference about tension and compression shackles. just my .2 $.

03-23-2007, 10:16 PM	#3
MNorby Rock Crawler Join Date: Jan 2007 Location: Northern Wyoming Posts: 904	seems like every scale RC with leaves I've seen are that way. I could image for jeeps and fords and such that are factory but even the chevys I have seen seem to have the shackle in the front.Just curious if there is a build reason on a RC or something. I know why either works in the rear 1:1 just curious on the RCs is all.

03-23-2007, 10:22 PM	#4
slobin3d I'm a stupid C U N T! Join Date: Jun 2005 Location: In the Garage! Posts: 4,307	pinion angle has some part to do with it, on a 1:1 street truck the will never see teh extreme twist and flex of a crawler setup truck, also with the shackles in the rear it give a more comfortable ride to the passenger. since most of the shock to the suspention will be moving front to back the spring will compress backwards and absorb it, with the shackle in the front the shock of an impact is transfered to the fixed end of the spring and then transfered to the chassis then to the driver

03-23-2007, 11:56 PM	#5
MNorby Rock Crawler Join Date: Jan 2007 Location: Northern Wyoming Posts: 904	right, I figured pinion angle had to be the reason but just wanted to see on a RC.

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Thread: Leaf spring shackle questions