Leaf Springs - The 1947 - Present Chevrolet & GMC Truck Message Board Network

WORNBRAKES · 11-30-2002, 09:00 PM

Is there any difference in the leafs on a 70 and on a 72? As long as they measure the same, they should be inerchangable. Right?

Thanks

**Palf70Step** · 11-30-2002, 09:22 PM

Mario
I was looking up the interchange book. Far as it is concerned it looks like if they are they same number of leafs, they should exchange. They have the same part number anyways.
The only comment they made is that not all say C20's will interchange with a C10 model. I would assume if they are the same number of leaves, or say both from a c20 they should work. 69-72 use the safe model number depending on the number of leaves in the package.

WORNBRAKES · 12-01-2002, 01:51 AM

Thanks Bill.
Does your book mention going from a C20 to a K20. That is where the swap would be made.
Thanks,
Mario

**Palf70Step** · 12-01-2002, 04:02 PM

Far as I can see Mario the book only mentions 4wd with a 5 leaf spring and it mentions them with the same number. I will assume that if they have the same number of leaves and other demensions seem to match then they should work. I would double check my measurement on where the axle sits on the leaf and any arch difference you might see. But I would tend to think, by the book they will work.

Mike C · 12-02-2002, 10:35 AM

The 4x4 trucks and Longhorns (69-72 at least) have 2 1/2" wide springs while the 2 wheel drive trucks have 2 1/4" wide springs, so the swap won't work.

11-30-2002, 09:00 PM	#1
WORNBRAKES Senior Member Join Date: Jul 2001 Location: Hughesville, MD Posts: 1,350	Leaf Springs Is there any difference in the leafs on a 70 and on a 72? As long as they measure the same, they should be inerchangable. Right? Thanks __________________ Mario and Mandy Hughesville, MD 20637 69 C10 305/350 71 K5 Basket case 75 K10 Rescue Parting out 77 MG Midget Parting out 15 6.7L Cummins

11-30-2002, 09:22 PM	#2
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,274	Mario I was looking up the interchange book. Far as it is concerned it looks like if they are they same number of leafs, they should exchange. They have the same part number anyways. The only comment they made is that not all say C20's will interchange with a C10 model. I would assume if they are the same number of leaves, or say both from a c20 they should work. 69-72 use the safe model number depending on the number of leaves in the package. __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!

12-01-2002, 01:51 AM	#3
WORNBRAKES Senior Member Join Date: Jul 2001 Location: Hughesville, MD Posts: 1,350	Thanks Bill. Does your book mention going from a C20 to a K20. That is where the swap would be made. Thanks, Mario __________________ Mario and Mandy Hughesville, MD 20637 69 C10 305/350 71 K5 Basket case 75 K10 Rescue Parting out 77 MG Midget Parting out 15 6.7L Cummins

12-01-2002, 04:02 PM	#4
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,274	Far as I can see Mario the book only mentions 4wd with a 5 leaf spring and it mentions them with the same number. I will assume that if they have the same number of leaves and other demensions seem to match then they should work. I would double check my measurement on where the axle sits on the leaf and any arch difference you might see. But I would tend to think, by the book they will work. __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!

12-02-2002, 10:35 AM	#5
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,728	The 4x4 trucks and Longhorns (69-72 at least) have 2 1/2" wide springs while the 2 wheel drive trucks have 2 1/4" wide springs, so the swap won't work. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax



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