suspension questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bagged92 · 06-21-2007, 01:29 PM

I haven't posted on here in a long time, but I have my 71 GMC running and on the road. I have a 363hp/432 lb.ft. 383 stroker in it with a close ratio muncie M21 with 12 bolt, with a 3.37 gear. I want to drag race the truck to get a baseline before I go any further.

here's the issue. I have never even dropped the clutch with the motor revved because the truck hops when I roll in the throttle in first. I have one leaf removed (previous owner), and I think this is causing axle rap. If I was to put my slicks on the truck, assuming it hooks, will it want to hop? What would be my best option if this does not work? I am wondering if I should order new lowered leafs or switch to the coil rear? Which is less likely to hop?

06-21-2007, 01:29 PM	#1
bagged92 Registered User Join Date: Feb 2006 Location: New York Posts: 22	suspension questions I haven't posted on here in a long time, but I have my 71 GMC running and on the road. I have a 363hp/432 lb.ft. 383 stroker in it with a close ratio muncie M21 with 12 bolt, with a 3.37 gear. I want to drag race the truck to get a baseline before I go any further. here's the issue. I have never even dropped the clutch with the motor revved because the truck hops when I roll in the throttle in first. I have one leaf removed (previous owner), and I think this is causing axle rap. If I was to put my slicks on the truck, assuming it hooks, will it want to hop? What would be my best option if this does not work? I am wondering if I should order new lowered leafs or switch to the coil rear? Which is less likely to hop?



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