Having problems with lowering... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

68GMCburban · 05-18-2013, 05:13 PM

I am about to lower my suburban, but I have a problem. The front suspension is out of a 1977 Chevy half ton truck, while my rear suspension is stock. Will a lower spring kit for my '68 work with my front suspension? Or do I need to order different springs for the front?

AzDon · 05-18-2013, 05:42 PM

I'm not 100% certain, but I'll share what I THINK I know..... My 68 suburban front springs have a tighter-wound "D" opening at the top that specifically fits a "D" stamping in the top pocket....
I've lowered a couple of 73-78 era half ton trucks that had conventional wound springs in the front....
Based on this, it would be my opinion that if you are using the 77 crossmember, you would also need to use springs from that era....

I'm still not convinced that a 77 doesn't have a wider trac-width that a 67-72 because I have never been personally involved in such a swap or experienced the results first hand...

Number98 · 05-19-2013, 07:21 PM

Call the guys over at Early Classic Enterprises, they can get you set up with everything you need. They will even mix and match a kit to fit your application...

5150 · 05-21-2013, 06:51 PM

The springs will work.

**396ci** · 05-23-2013, 08:44 PM

Quote:

Originally Posted by 5150

The springs will work.

yes they will. the 73-87 does have a slighty different spring rate (stiffer i believe) over the 67-72.

05-18-2013, 05:13 PM	#1
68GMCburban Registered User Join Date: Feb 2013 Location: Ada, Oklahoma Posts: 223	Having problems with lowering... I am about to lower my suburban, but I have a problem. The front suspension is out of a 1977 Chevy half ton truck, while my rear suspension is stock. Will a lower spring kit for my '68 work with my front suspension? Or do I need to order different springs for the front? __________________ -Holden 1983 & 1972 Chevy Longbeds (16) 67-72s (Rollback, 402's, Sierra Grande, Shortbeds, Shortsteps, Longhorn, etc) 1968 GMC Suburban- (Current project) Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=569806 (6) 60-66s (shortstep, rollback, two-ton, longbeds) (3) 47-59s half tons + MANY more and always looking for more

05-18-2013, 05:42 PM	#2
AzDon Registered User Join Date: Oct 2008 Location: Lake Havasu,AZ Posts: 202	Re: Having problems with lowering... I'm not 100% certain, but I'll share what I THINK I know..... My 68 suburban front springs have a tighter-wound "D" opening at the top that specifically fits a "D" stamping in the top pocket.... I've lowered a couple of 73-78 era half ton trucks that had conventional wound springs in the front.... Based on this, it would be my opinion that if you are using the 77 crossmember, you would also need to use springs from that era.... I'm still not convinced that a 77 doesn't have a wider trac-width that a 67-72 because I have never been personally involved in such a swap or experienced the results first hand...

05-19-2013, 07:21 PM	#3
Number98 Prestige Worldwide Join Date: Feb 2001 Location: Worldwide Posts: 2,553	Re: Having problems with lowering... Call the guys over at Early Classic Enterprises, they can get you set up with everything you need. They will even mix and match a kit to fit your application...

05-21-2013, 06:51 PM	#4
5150 C10 Club Tennessee Join Date: Mar 2003 Location: White House, TN 37188 Posts: 8,277	Re: Having problems with lowering... The springs will work. __________________ Bryan www.gmtruckshow.com Project "Andes"-Halen's First Truck Project: Patina Burb for he is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain. For he is the servant of God, an avenger who carries out God’s wrath on the wrongdoer. Romans 13:4



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