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02-15-2004, 02:00 AM
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#1 |
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Semper Fidelis
Join Date: Dec 2001
Location: Cedar City, Utah
Posts: 654
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3/4 ton rear spring ?
I want to buy a 3/4 ton 71 or 72 soon and want your opinion on whether coil or leaf is better. To me I prefer leaf as you can add a leaf and they just seem to be tougher. Whats the scoop?
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72 Chevy C 20 with 402 For sale 85 GMC K2500  83 Trans Am Cedar City, Utah (Missouri Native) |
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02-15-2004, 10:53 AM
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#2 |
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Registered User
Join Date: Dec 1999
Location: BRADENTON FLA
Posts: 3,269
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I have 2 3/4 ton coil with factory overloads and pull a trailer with a truck on it and the bed loaded with parts with no problems, 1 is a leaf converted to coil truck we did.
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Rest in Peace Ed. Thanks for all the good times. |
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02-15-2004, 11:25 AM
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#3 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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ONless you plan on overloading it, the coils and leafs are rated the same, and the coils seem to hold up over time a bit better. I have seen many 67 - 72 trucks with a cracked leaf in the rear.
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02-15-2004, 12:26 PM
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20' Daredevil (Ret)
 
Join Date: May 2003
Location: Jefferson State
Posts: 13,725
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No problems with my OEM leaf springs, but if you had coils and wanted to beef 'em up for the occasional heavy load, how about adding air bags?
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- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
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02-15-2004, 12:45 PM
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#5 |
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Semper Fidelis
Join Date: Dec 2001
Location: Cedar City, Utah
Posts: 654
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Thanks for the input. Is there a perceived value difference? If so would the leaf rear trucks be considered more valuable?
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72 Chevy C 20 with 402 For sale 85 GMC K2500 83 Trans Am Cedar City, Utah (Missouri Native) |
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02-15-2004, 02:03 PM
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#6 |
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20' Daredevil (Ret)
Join Date: May 2003
Location: Jefferson State
Posts: 13,725
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I really don't know. But I think that possibly (and I know this will be corrected by fellow board members
 ) 2wd trucks generally have coils, and 4wd trucks have leaf springs. This may vary by year, though, we'll see what the experts here say! 
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- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
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02-16-2004, 12:39 AM
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#7 |
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Semper Fidelis
Join Date: Dec 2001
Location: Cedar City, Utah
Posts: 654
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I thought the rule of thumb was GMC leafs and chevy coils with some exeptions.
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72 Chevy C 20 with 402 For sale 85 GMC K2500 83 Trans Am Cedar City, Utah (Missouri Native) |
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02-16-2004, 12:55 AM
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#8 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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robby, that is correct, GMC generally had leafs standard with optional coils, while it was the other way around on the Chevys.
However, there is some gray area in the GMC side. I have a 69 SWB 1/2 ton with coils, the numbers match cab to frame, no listing of the coils in the glove box, yet they are under there...same deal on an old friend's 69 GMC LWB 1/2 ton. I also ahve a pic of a GMC's option seet showing leaf springs... So that rule of thumb is not always quite correct. |
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