ride quality on 18/20" wheels and coils - The 1947 - Present Chevrolet & GMC Truck Message Board Network

68c10airstream · 08-13-2014, 11:01 PM

Looking for feedback on 18/20" wheels on coil sprung c10's. I have a 68 c10 with 2 1/2" drop spindles with stock coils in front and 4" dropped coils in back, all from e.c.e. Considering 18x8 front 18x9 rear 55 aspect ratio tires, or 20x8 front 20x9 rear 45 aspect ratio. I've looked at times for opinions on ride quality and would like to go with 20's but hesitant as i think it will ride too firm. Going for a 28+" front tire diameter and a 29+" diameter rear tire using either a 18" rim or a 20" rim. I've decided on mobsteel steel wheels with a beauty ring and a poverty cap. Thanks in advance!

**PGSigns** · 08-14-2014, 10:21 AM

The ride will come down a lot to the spring, shock and tire combo. The sidewall construction of the tire you pick will affect the ride. The stiffer the sidewall the harsher the ride. I use tire rack to both research and buy tires and they have a lot of reviews and rate the tires pretty well.
Jimmy

BR3W CITY · 08-14-2014, 12:58 PM

Coming from a 15" tire, pretty much anything ruins the ride lol.

To me, 18" is where the dividing line for comfort is on MOST older vehicles. Once you reach the late model set, with struts, air suspension etc, this starts to change. Its nothing to put 22"s on a new charger that came with 20's, but thats a whole different ballpark.

Holliday · 08-16-2014, 09:06 PM

I went from 17's on a 5/7 coil drop to 20's and the ride was horrible. Decided I better but air ride on it now

Andy4639 · 08-18-2014, 09:34 PM

I have 3" lowering coils up front and 4" out back with Boss 338 20" wheels front and back. Tires are 245 up front.

275 out back. I also put the helper air bags in the rear coils to help the bouncing effect and the truck rides wonderful.

Note: When I bought my wheels & tires they talked me out of staggering them.
Look at the trucks that are staggered and the tires are smaller side walls than the rear's. If you look close enough, they look out of place.

NEWFISHER · 09-08-2014, 07:05 PM

My best analogy: Tires, wheels and suspension are like women. The skinnier they are, the harder they ride. The flashier they are, the more likely they get stolen and the lower they get, it's harder to get into your parents driveway.

mixermike · 09-08-2014, 08:07 PM

Quote:

Originally Posted by NEWFISHER

My best analogy: Tires, wheels and suspension are like women. The skinnier they are, the harder they ride. The flashier they are, the more likely they get stolen and the lower they get, it's harder to get into your parents driveway.

That's good, I can't stop laughing!!!

08-13-2014, 11:01 PM	#1
68c10airstream Registered User Join Date: Mar 2013 Location: Marquette michigan Posts: 828	ride quality on 18/20" wheels and coils Looking for feedback on 18/20" wheels on coil sprung c10's. I have a 68 c10 with 2 1/2" drop spindles with stock coils in front and 4" dropped coils in back, all from e.c.e. Considering 18x8 front 18x9 rear 55 aspect ratio tires, or 20x8 front 20x9 rear 45 aspect ratio. I've looked at times for opinions on ride quality and would like to go with 20's but hesitant as i think it will ride too firm. Going for a 28+" front tire diameter and a 29+" diameter rear tire using either a 18" rim or a 20" rim. I've decided on mobsteel steel wheels with a beauty ring and a poverty cap. Thanks in advance!

08-14-2014, 10:21 AM	#2
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: ride quality on 18/20" wheels and coils The ride will come down a lot to the spring, shock and tire combo. The sidewall construction of the tire you pick will affect the ride. The stiffer the sidewall the harsher the ride. I use tire rack to both research and buy tires and they have a lot of reviews and rate the tires pretty well. Jimmy __________________ 60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic

08-14-2014, 12:58 PM	#3
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: ride quality on 18/20" wheels and coils Coming from a 15" tire, pretty much anything ruins the ride lol. To me, 18" is where the dividing line for comfort is on MOST older vehicles. Once you reach the late model set, with struts, air suspension etc, this starts to change. Its nothing to put 22"s on a new charger that came with 20's, but thats a whole different ballpark. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

08-16-2014, 09:06 PM	#4
Holliday Registered User Join Date: Jun 2012 Location: Cache, OK Posts: 412	Re: ride quality on 18/20" wheels and coils I went from 17's on a 5/7 coil drop to 20's and the ride was horrible. Decided I better but air ride on it now __________________ "ALWAYS SOMETHING" 1968 Chevy C10 SWB 383 SBC, TH350 Porterbuilt, Accuair suspension

08-18-2014, 09:34 PM	#5
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Re: ride quality on 18/20" wheels and coils I have 3" lowering coils up front and 4" out back with Boss 338 20" wheels front and back. Tires are 245 up front. 275 out back. I also put the helper air bags in the rear coils to help the bouncing effect and the truck rides wonderful. Note: When I bought my wheels & tires they talked me out of staggering them. Look at the trucks that are staggered and the tires are smaller side walls than the rear's. If you look close enough, they look out of place. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

09-08-2014, 07:05 PM	#6
NEWFISHER Registered User Join Date: Sep 2012 Location: Oregon Posts: 3,303	Re: ride quality on 18/20" wheels and coils My best analogy: Tires, wheels and suspension are like women. The skinnier they are, the harder they ride. The flashier they are, the more likely they get stolen and the lower they get, it's harder to get into your parents driveway. __________________ GOD BLESS AMERICA!



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