C10 suspension VS C20 suspension - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Clos'84TX · 04-03-2005, 08:53 AM

Do the leaf springs and hardware differ between a C10 and C20?

Reason I'm asking is because my truck was converted from a Diesel to a gas 350 q-jet set up. I've very certain my suspension was never changed over. Because I still had diesel type rear end gears.

I plan to drop my truck to 3/5 drop. Do I need to buy all matching leaf springs if I use a rear flip kit? Made for a C10 If infact my rear suspension is big (heavy duty).

Streetmaster · 04-03-2005, 12:19 PM

Dont know how thick your springs are, but if there any thicker than mine which are 3 liefs with a real thick lief on the bottom as a helper spring, then i would because the thing might ride really rough over R/R trax, and pot holes, and such. I remember even with the springs i've got, they made it seem that the pore bed was gonna fly off after i hit a rough set of tracks a little to fast, but that was before i tore it all down to do a grownd up resto. Good Luck

MylilBowTie · 04-03-2005, 04:04 PM

What you will need to find out is if you have 52in leafsprings or 56in leafsprings (HD). What year and load capacity (1/2-3/4-1 ton) is the truck your talking about? What type rear end does it have (10 12 or 14 bolt)?

http://www.eatonsprings.com/measuring.htm

**Captkaos** · 04-05-2005, 12:17 AM

The size/length of the springs won't matter for a flip kit though.

Clos'84TX · 04-05-2005, 11:21 AM

thanks for the help.

04-03-2005, 08:53 AM	#1
Clos'84TX Foom, foom, foom! Join Date: Mar 2005 Location: Abilene, TX Posts: 106	C10 suspension VS C20 suspension Do the leaf springs and hardware differ between a C10 and C20? Reason I'm asking is because my truck was converted from a Diesel to a gas 350 q-jet set up. I've very certain my suspension was never changed over. Because I still had diesel type rear end gears. I plan to drop my truck to 3/5 drop. Do I need to buy all matching leaf springs if I use a rear flip kit? Made for a C10 If infact my rear suspension is big (heavy duty). __________________ - Dan 84' LWB C10 // 2.5" from collector back. duel Turbo Mufflers // 350 w/ TH350 long Headers//3.73 rearend gears Future Mods *3/4 suspension drop*

04-03-2005, 04:04 PM	#3
MylilBowTie Right turn Clyde Join Date: Nov 2002 Location: Cincinnati, Ohio Posts: 2,911	What you will need to find out is if you have 52in leafsprings or 56in leafsprings (HD). What year and load capacity (1/2-3/4-1 ton) is the truck your talking about? What type rear end does it have (10 12 or 14 bolt)? http://www.eatonsprings.com/measuring.htm __________________ 1974 C25 LWB: 454 4bbl Carb / TH400 / 3.73 1992 Camaro RS 305 TBI

04-05-2005, 12:17 AM	#4
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	The size/length of the springs won't matter for a flip kit though. __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com

04-05-2005, 11:21 AM	#5
Clos'84TX Foom, foom, foom! Join Date: Mar 2005 Location: Abilene, TX Posts: 106	thanks for the help. __________________ - Dan 84' LWB C10 // 2.5" from collector back. duel Turbo Mufflers // 350 w/ TH350 long Headers//3.73 rearend gears Future Mods *3/4 suspension drop*

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04-03-2005, 12:19 PM	#2
Streetmaster Registered User Join Date: Mar 2005 Posts: 92	Dont know how thick your springs are, but if there any thicker than mine which are 3 liefs with a real thick lief on the bottom as a helper spring, then i would because the thing might ride really rough over R/R trax, and pot holes, and such. I remember even with the springs i've got, they made it seem that the pore bed was gonna fly off after i hit a rough set of tracks a little to fast, but that was before i tore it all down to do a grownd up resto. Good Luck



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