Front Coil Spring info needed

Old May 10th, 2019, 08:09 AM
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Front Coil Spring info needed

When reinstalling front coil springs on my 69 Cutlass vert is there a top and bottom to the springs.
On a flat surface one end of the spring is level and the spring stands evenly, When flipped over the spring stands cockeyed. Which way do they go in ?

When the spring is in is the correct position for it to be rotated until the end of the bottom coil aligns with the hole in the lower a frame ?
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Old May 10th, 2019, 08:18 AM
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They do go in a certain way, the flat end goes up, the end with the pigtail goes downward, if you look at the seat for the spring on the lower control arm you will see an "indent" where the pigtail fits / sits.
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Old May 10th, 2019, 08:53 AM
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Perfect, Thanks
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Old May 10th, 2019, 08:55 AM
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And yes, end of pig tail should be at center of witness hole (or close). I read in the 68 assembly manual that one of the front springs is supposed to be slightly longer than the other. So you might compare and put the longer one on the appropriate side. I donít recall the which side it is, but probably driver side to compensate for left rear squat?
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Old May 10th, 2019, 09:11 AM
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No difference between sides on a 68. Might be mistaken but it is a drain hole, not a witness hole.
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Old May 10th, 2019, 05:01 PM
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You can't trust these assembly manuals, i.e. they say the '68-'69 400 pistons are flat tops, but are really slightly dished. So, maybe this isn't correct, but it is from the assembly manual. It does say that they used low rate (slightly shorter) on RH side, identified by circle around letter code tape tag.


As for the drain hole, yes, it does also serve as a drain hole. But, it is also used to index the spring.
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Old May 10th, 2019, 05:12 PM
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It is a witness hole, not a drain hole.
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Old May 10th, 2019, 05:19 PM
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Originally Posted by Yellowstatue View Post
It is a witness hole, not a drain hole.
Said the guy who taught me the assembly manual is incorrect regarding flat-top pistons.
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