The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Big Block on VIN plate

**DANTIP** · 12-19-2013, 06:30 PM

The 72 1/2 ton Big-block trucks were required to have heavy front and rear springs. The 71 and earlier were not.

Dan

12-19-2013, 06:30 PM	#12
DANTIP Registered User Join Date: Sep 2001 Location: Fort Wayne, Indiana, USA Posts: 1,880	Re: Big Block on VIN plate - can you tell? The 72 1/2 ton Big-block trucks were required to have heavy front and rear springs. The 71 and earlier were not. Dan