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C5 suspension renewal project and loctite


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Yellowshark

Club Member

Sat 07 Oct 17 19:04

C5 suspension renewal project and loctite


Following my rear spring failure I am going for total renewal and upgrade, so

Front Z51 spring and sway bar
Rear Z51 spring and sway bar
C6Z06 shocks all-round
Plus links, bushes/isolators, new rear and front height adjusters.
New bolts as far as I can see are few and far between (except for ride height adjustment) so I am planning on re-using all bolts.

What Loctite threadlock product would you guys use? - there seem to be so many different numbers and not necessarily all are easily accessible.

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FranV8

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Sat 07 Oct 17 19:50


Loctite 243 is the general purpose thread locker. Use that BUT - what needs threadlocking? If they are nyloc nuts then these should not need threadlock but technically should be replaced with new nyloc nuts.


--------------------
1995 Corvette LT1 6-Speed Coupe
2007 Honda UFO

Previous
1986 Corvette Z51 Coupe

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Yellowshark

Club Member

Sat 07 Oct 17 21:53


Well the nuts are 16 years old , did they have nyloc back then I wonder. If I knew what the threads were I might try and get some nuts in advance but I do not, so Loctite seems to me the easiest way to get the job done quickly. I was thinking about going a bit stronger than "general purpose" suggests, as the bolts will unlikely need touching for another 16 years at least. Maybe I am behind the times and everyone uses nyloc these days!

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FranV8

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Sat 07 Oct 17 22:29


Put in place what it came with, if it is a nyloc then refot a nyloc, if not then don't replace with a nyloc. Also, were these threadlocked from the factory? If so do them if not don't.

You can go stronger if you like but I can tell you now, I've got an older car where a stronger Loctite product holds a splined rear hub on a splined axle, using a puller on its own to remove it would result in a broken puller, it needs (by design and the workshop manual for that car) heat to take it off, and I used a MAPP gas torch to do this. If you're using the heavy duty stuff make sure it is an area where you can do this without burning plastic/wiring/rubber bushes etc.


--------------------
1995 Corvette LT1 6-Speed Coupe
2007 Honda UFO

Previous
1986 Corvette Z51 Coupe

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roppa440

Club Member

Sun 08 Oct 17 17:16

Re: C5 suspension renewal project and loctite


As long as you torque correctly you don't need loctite on anything down there I can think of.

Sway bar end links - get the type with grease nipples. Harder to find but worth it to prevent a squeak.

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Shifty

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Sun 08 Oct 17 18:38


Id love to do the same to mine. Keep us posted.


--------------------
2004 Corvette C5 Coupe
2003 Suzuki GSX-R1000

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Yellowshark

Club Member

Fri 27 Apr 18 14:22

Re: C5 suspension renewal project and loctite


Well now that we have had a period of decent weather, i.e. relatively warm and imprtantly not raining (although peeing down again today) I have finally finished my upgrade to Z51 spec. Z51 front/rear leaf springs, Z51 front/rear sway bars (with new metal endlinks rather than the original plastic ones and new bushes), C6z06 shocks.

I went for a short test drive yesterday; OMG what a difference Cloud9 , the car just feels a whole lot tighter, turn in more responsive, going into bends faster with greater confidence, encouraged to apply the power earlier on corner exit and an irritating minor rattle in the rear which I thought might be the exhaust has disappeared.

Not the cheapest job I have done on the C5 but absolutely money well spent, it feels like a new car. I just have to go on a longer test drive to let everything settle in and then check/adjust ride height if necessary.

Oh, and the shocks are great. I did have some concern about choosing them, one hears about rough ride/harshness etc. but to my mind the ride is just great. I went over some reasonably bumpy tarmac yesterday and I just did not fell anything negative about the ride, I would heartily recommend them.

Just wish I had done this in 2001 when I ordered the car!

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Vetteheadtony

Club Member

Mon 30 Apr 18 11:12

Re: C5 suspension renewal project and loctite


Good job, but as Roppa said next time you need sway bar links get the steel ones with grease nipples, they really last!
The updated GM alloy ones are better than plastic but do start to knock after a while.
MOOG K750136 Rockauto do them for 15 +post each Thumbs up
Also some nuts on the C5 are locking but NOT nyloc type



Last edited by Vetteheadtony on Mon 30 Apr 18 11:15; edited 1 time in total. [10 %]
--------------------
Vetteheadtony
2004 Z06 lemans edition pro charged
613 BHP
Black C6 ZR1 wheels
FECKING FAST!!!

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z06_tim

Club Member

Mon 30 Apr 18 13:06


I fitted the MOOG ones to mine a few months back Tony. Really pleased with them. Ordered from RockAuto and as they shipped from a German depot there was no import duty to pay!

When I read Yellowsharks last post I thought he said he fitted metal drop-links. Not sure what type tho?


--------------------
2001 Z06, 1994 LT1 (sold)
Alfa 147 GTA daily driver.

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Yellowshark

Club Member

Mon 30 Apr 18 13:34

Re: C5 suspension renewal project and loctite


No nipples on mine, just standard GM ones from Cultrag. But the plastic ones have lasted me from 2001 so I think the upgraded ones will probably outlast me now. Of course having nipples to play with does have its benefits silly

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