chevelle splined sway bar rates - Lateral-g Forums

The WidowMaker · #1 11-03-2008, 10:44 AM

im looking for some rates to compliment my setup.

front 550 springs, ats spindles, spc uppers, alston shocks
rear 150 alston coilovers straight up, parallel 4 link, watts set at 12"

any info would be greatly appreciated. i need to pull the trigger on a rear bar this week.

thanks, Tim

68protouring454 · #2 11-03-2008, 11:37 AM

it all depends where you will mount the bar and how long your arms end up being.

The WidowMaker · #3 11-03-2008, 01:04 PM

thanks for the reply. im not actually looking for the size of bar or length of arms. i just need the approximate rate and then i can tailor the arms to meet that rate with my bar widths. the arms will have multiple adjustment holes to dial it in, but i need somewhere to start.

right now im thinking about 500 for the front and about 300 for the rear. mark thought that the RRCH was a little low and would require too much rate with my 150 springs. therefore ill probably move it up an inch or two.

thanks again,
Tim

68protouring454 · #4 11-03-2008, 01:16 PM

yes, i would go for 450-600 front and 250-350 for the rear

The WidowMaker · #5 11-03-2008, 07:02 PM

sounds good, ill start there.

anyone know what the stock ones were? 1.25" front and 1" rear.

they are a solid bar with "x" length arms, but those figures come out pretty high. different steel?

thanks, Tim

Blown353 · #6 11-03-2008, 07:42 PM

Stock bar diameter depended on suspension package... most stock sway bars for 68-72 Chevelles were 3/4" to 1" in front and 7/8" was the only rear bar offered.

Keep in mind the way the rear bar is mounted by the factory really reduces the effectiveness.