C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Rear spring bushing?

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Old Oct 20, 2025 | 06:22 PM
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Default Rear spring bushing?

So I ordered a set of poly bushing for the rear spring and it comes with 4 bushings and 4 washers. On my 84' it had 4 bushings and 4 washers with a center sleeve like an old school sway bar link. I can't find any install directions on this subject but do I just use a bushing on the top and bottom none in the middle and no sleeve? Just confused because one kit is said to do the whole rear not just one side.

Last edited by Realfast86; Oct 20, 2025 at 08:04 PM.
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Old Oct 20, 2025 | 09:18 PM
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I don't know about your year but this is the setup on my 96. Dan
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Old Oct 20, 2025 | 09:42 PM
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'84's have four bushings on each side. Looks like the bushing kit sent to you is not for an '84.

Here is a pic of mine in the middle of installing new u-joints.


looks like new bushings are in my future soon.
looks like new bushings are in my future soon.
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Old Oct 20, 2025 | 09:53 PM
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For more info from another forum member check out post #11 from my recent u-joint replacement thread.

https://www.corvetteforum.com/forums...-were-bad.html
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Old Oct 21, 2025 | 12:31 PM
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Yes mine has the 4 bushing setup like the other 84'. I did install the poly's the same way but my issues is the bushing on the top side of the spring does not want to seat in the cup. This is while the car is on the lift hanging it may seat itself on the ground. No poly bushing I have seen specify any certain years all say 84-96'. Dont know is I should chance the poly's or get factory rubber's. Wondering if it matters if I go the two per side like the latter years and when you do the longer lowering bolts they use one two as well.
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Old Oct 21, 2025 | 06:28 PM
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Originally Posted by Realfast86
Yes mine has the 4 bushing setup like the other 84'. I did install the poly's the same way but my issues is the bushing on the top side of the spring does not want to seat in the cup. This is while the car is on the lift hanging it may seat itself on the ground. No poly bushing I have seen specify any certain years all say 84-96'. Dont know is I should chance the poly's or get factory rubber's. Wondering if it matters if I go the two per side like the latter years and when you do the longer lowering bolts they use one two as well.
Because of the angle or the cup dimension? Poly bushings can be shaped and they also cold flow quite a bit to conform/fit over time.
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Old Oct 21, 2025 | 06:35 PM
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Correct even when I lift it up it still wants to pop out. which is why I'm wondering if I even need the middle bushings.


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Old Oct 21, 2025 | 07:18 PM
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I think that will pop in place when you lower the car to thew ground and the angle on the spring improves
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Old Oct 22, 2025 | 09:00 AM
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I'm going to see what it does once on the ground it might ride to high anyways with that stiff spring so it may get lowered.
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