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Corvette
C3 Forum
All New ...But Too High?
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<blockquote data-quote="Brian Keery" data-source="post: 84428" data-attributes="member: 1580"><p>Totally agree with Riley on this one. First, make sure the front springs are: 1) the correct spring for the application, 2) PROPERLY seated in the pockets, and 3) the suspension has to be torqued to spec with the suspension fully weighted - usually on a 4 post lift at an alignment-type shop. </p><p></p><p>This is also the case for the rear spring. The mounting bolts at the differential CANNOT be torqued to spec unless the rear suspension is fully weighted. Rear ride height can be a pain to dial in with an aftermarket spring; but with an OEM spring, if installed properly, with proper rubbers and bolts, the ride height will settle after moving the car a few feet. At St. Louis or Bowling Green, the cars were rolled over some corrugated steel at the end of the assembly line to seat the rear suspension - it didn't take weeks of driving for things to 'settle'.</p><p></p><p>If you want to go lower after the fact, 8'' or even C4 10" rear bolts (although you might need to take an inch or so off these) can be used to drop the rear. Actually any place that can supply you with a 9/16" Grade 8 bolt will suffice. 550lb front springs are a good alternative for dropping the front end an inch or so, without resorting to 'Bubba' tactics of hacksawing or heating original springs. Either way, proper installation techniques must be used to ensure not only correct ride height, but to make sure parts are working as designed and safe.</p><p></p><p>Not a lot of mechanics will be familiar with the rear suspension dynamics, but the front is just pure Chevy. Good luck, and congrats on your new toy.</p></blockquote><p></p>
[QUOTE="Brian Keery, post: 84428, member: 1580"] Totally agree with Riley on this one. First, make sure the front springs are: 1) the correct spring for the application, 2) PROPERLY seated in the pockets, and 3) the suspension has to be torqued to spec with the suspension fully weighted - usually on a 4 post lift at an alignment-type shop. This is also the case for the rear spring. The mounting bolts at the differential CANNOT be torqued to spec unless the rear suspension is fully weighted. Rear ride height can be a pain to dial in with an aftermarket spring; but with an OEM spring, if installed properly, with proper rubbers and bolts, the ride height will settle after moving the car a few feet. At St. Louis or Bowling Green, the cars were rolled over some corrugated steel at the end of the assembly line to seat the rear suspension - it didn't take weeks of driving for things to 'settle'. If you want to go lower after the fact, 8'' or even C4 10" rear bolts (although you might need to take an inch or so off these) can be used to drop the rear. Actually any place that can supply you with a 9/16" Grade 8 bolt will suffice. 550lb front springs are a good alternative for dropping the front end an inch or so, without resorting to 'Bubba' tactics of hacksawing or heating original springs. Either way, proper installation techniques must be used to ensure not only correct ride height, but to make sure parts are working as designed and safe. Not a lot of mechanics will be familiar with the rear suspension dynamics, but the front is just pure Chevy. Good luck, and congrats on your new toy. [/QUOTE]
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Corvette
C3 Forum
All New ...But Too High?
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