OK suspension gurus, I have a question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Goats86 · 01-27-2011, 08:47 PM

When modifying a frame and differential from leaf spring to trailing arm/coil setup. Why does no one work off the front leaf spring mount on the frame? Seems like it is A, in place accurately, B, looks fairly strong, ?????? Anybody want to weigh in on this one?

AVS_JASON · 01-27-2011, 08:56 PM

I don't see why you would have a problem using it. I have my wishbone set up using the factory front hangers.

Goats86 · 01-27-2011, 11:20 PM

Have a link to any pictures?

SCOTI · 01-28-2011, 02:03 AM

Quote:

Originally Posted by Goats86

When modifying a frame and differential from leaf spring to trailing arm/coil setup. Why does no one work off the front leaf spring mount on the frame? Seems like it is A, in place accurately, B, looks fairly strong, ?????? Anybody want to weigh in on this one?

Why would you want to? Why not use the factory mounts in factory positions?

smashingchuck · 01-28-2011, 10:54 AM

a few reasons...

1. the axle would fail to articulate if it had a solid mount to the axle like factory trailing arms.
2. You would then have to fabricate upper and lower coil spring pockets since the arms would not pass under the frame.
3. without the trailing arms passing under the frame I think you would be hard pressed to achieve a comfortable ride with a coil spring with such a short bar. Fitting it under the bed would be another problem.
4. Why fix what isn't broken? The factory arms WORK, and its a direct swap.

**lolife99** · 01-28-2011, 11:14 AM

What smashingchuck described is all the reasons not to do what I call a "2-link".
These are really popular for guys wanting a quick air bag set up on the 73-up leaf spring trucks.
Below is one of the correct ways to convert to "factory" trailing arms.
They were written up by member gringoloco.

Truck thread:http://67-72chevytrucks.com/vboard/s...d.php?t=281629

Blazer thread:http://67-72chevytrucks.com/vboard/s...d.php?t=218156

AVS_JASON · 01-28-2011, 12:43 PM

Sorry, I may be getting confused and talking about something totally different then what your looking for. But here is the only pic I have when I first did the rear a few years ago.

*Shane* · 01-28-2011, 04:00 PM

oh my ... those welds are a bit frightening.

AVS_JASON · 01-28-2011, 04:09 PM

HAHA. Yes they were. I have since removed and re-did it. After I learned how to weld. Prolly what I should have done in the first place.

01-27-2011, 08:47 PM	#1
Goats86 Registered User Join Date: Dec 2010 Location: Waxahachie, Texas Posts: 144	OK suspension gurus, I have a question When modifying a frame and differential from leaf spring to trailing arm/coil setup. Why does no one work off the front leaf spring mount on the frame? Seems like it is A, in place accurately, B, looks fairly strong, ?????? Anybody want to weigh in on this one?

01-27-2011, 08:56 PM	#2
AVS_JASON AIRBAGPARTS.COM Join Date: Dec 2008 Location: CEN CAL Posts: 520	Re: OK suspension gurus, I have a question I don't see why you would have a problem using it. I have my wishbone set up using the factory front hangers.

01-27-2011, 11:20 PM	#3
Goats86 Registered User Join Date: Dec 2010 Location: Waxahachie, Texas Posts: 144	Re: OK suspension gurus, I have a question Have a link to any pictures?

01-28-2011, 10:54 AM	#5
smashingchuck It'd be alot cooler if you did Join Date: May 2003 Location: Three Rivers, MI Posts: 2,345	Re: OK suspension gurus, I have a question a few reasons... 1. the axle would fail to articulate if it had a solid mount to the axle like factory trailing arms. 2. You would then have to fabricate upper and lower coil spring pockets since the arms would not pass under the frame. 3. without the trailing arms passing under the frame I think you would be hard pressed to achieve a comfortable ride with a coil spring with such a short bar. Fitting it under the bed would be another problem. 4. Why fix what isn't broken? The factory arms WORK, and its a direct swap. __________________ 78 Build Thread 4Runner Build

01-28-2011, 11:14 AM	#6
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,701	Re: OK suspension gurus, I have a question What smashingchuck described is all the reasons not to do what I call a "2-link". These are really popular for guys wanting a quick air bag set up on the 73-up leaf spring trucks. Below is one of the correct ways to convert to "factory" trailing arms. They were written up by member gringoloco. Truck thread:http://67-72chevytrucks.com/vboard/s...d.php?t=281629 Blazer thread:http://67-72chevytrucks.com/vboard/s...d.php?t=218156 __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

01-28-2011, 12:43 PM	#7
AVS_JASON AIRBAGPARTS.COM Join Date: Dec 2008 Location: CEN CAL Posts: 520	Re: OK suspension gurus, I have a question Sorry, I may be getting confused and talking about something totally different then what your looking for. But here is the only pic I have when I first did the rear a few years ago.

01-28-2011, 04:00 PM	#8
Shane Account Suspended Join Date: Jun 2000 Location: over yonder Posts: 14,270	Re: OK suspension gurus, I have a question oh my ... those welds are a bit frightening.

01-28-2011, 04:09 PM	#9
AVS_JASON AIRBAGPARTS.COM Join Date: Dec 2008 Location: CEN CAL Posts: 520	Re: OK suspension gurus, I have a question HAHA. Yes they were. I have since removed and re-did it. After I learned how to weld. Prolly what I should have done in the first place.



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