03-15-2020, 08:51 AM | #1 |
Drives: 2015 Black rs/ss/1le Join Date: Apr 2018
Location: PA
Posts: 271
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Z28 suspension kit instructions
Does anyone know were I can get a copy of the z28 suspension kit installation instructions? I want to see what I’m up against. The last time I worked on a suspension upgrade was installing a short arm kit on a Jeep Wrangler. I was younger then and it was brutal.
If you have any tips to share on the install, that would be awesome. Thanks! |
03-15-2020, 09:00 AM | #2 |
Drives: 2010 Inferno Orange 2SS/RS Join Date: Apr 2010
Location: Clermont, IN
Posts: 3,297
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When things get that difficult....I defer to the professionals.
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2010 Inferno Orange 2SS/RS M6 Black Leather, Sun Roof, OBX Headers, Borla touring axle back, Cold Air Inductions CAI , non synthetic fluids, BMR total bushing upgrade/1" lowering springs, DSE 32mm rear sway bar. GM fe4 shocks/struts/LCA's, AAM 3.91 diff, Vertini RFS1.8 20x9 +30. Conti ExtremeContact Sport 275/35/20. sjm autoprod ABL dash kit. Mike Norris tuned 413/419.
Avenging Orange: 43 years of not buying into the Hype........and damn proud of it!! https://youtu.be/9JD9it6SmB8 https://youtu.be/xmelTlEzI34 KICKING CANCERS ASS SINCE 2015!! |
03-15-2020, 10:37 AM | #3 | |
Drives: 2015 Black rs/ss/1le Join Date: Apr 2018
Location: PA
Posts: 271
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Quote:
This and a cam swap will be the last mods that I plan on installing myself. I will have accomplished everything I wanted to do that I couldn’t do when I was younger (couldn’t afford it). |
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03-16-2020, 08:38 AM | #4 |
Drives: 2010 2SS/RS Join Date: Dec 2009
Location: Clarksville Tennesse.
Posts: 6,064
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Make sure you have a good impact electric or pneumatic, a good jack an stands, maybe a roll around stool an plan for a full weekend and take your time. Good thing is you won’t have to replace and control arms in the rear since the 1LE an Z28 share the same arms, not sure if your going to be doing the Rear Upper Control Arm bushings but you have to drop the cradle a few inches (you’ll have to remove the upper arm to replace). I used a motorcycle lift to help lower and raise my cradle for the bushings. The front should just be a standard strut swap few hours at best.
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Orange Krush II
1LE Front sway bar, Splitter, shocks and struts, Z28 dual mode mufflers, Intake, UCA Bushings, and Toresen 3.91 Diff. 1 piece DSS Drive Shaft, ZL1/C7 Calipers, and 32mm JPSS Rear Bar. ASC race spec splitter and wicker. 6th Gen M017 Wheels. Stainless Works 1 7/8 LTs. DSE and PAFDT Suspension components. |
03-17-2020, 03:34 PM | #5 | |
Drives: 2015 Black rs/ss/1le Join Date: Apr 2018
Location: PA
Posts: 271
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04-09-2020, 07:57 AM | #6 |
Drives: 2015 Black rs/ss/1le Join Date: Apr 2018
Location: PA
Posts: 271
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Anyone happen to have a part numbers list of the TTY bolts needed? They should have at least included a part number list in the instructions. I have about $120 worth of nuts and bolts in my cart and I’m not sure I got them all.
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04-09-2020, 09:57 AM | #7 |
Drives: 2010 2SS/RS Join Date: Dec 2009
Location: Clarksville Tennesse.
Posts: 6,064
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I reused everything and have 2 track days without issue just used a little blue loctite.
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Orange Krush II
1LE Front sway bar, Splitter, shocks and struts, Z28 dual mode mufflers, Intake, UCA Bushings, and Toresen 3.91 Diff. 1 piece DSS Drive Shaft, ZL1/C7 Calipers, and 32mm JPSS Rear Bar. ASC race spec splitter and wicker. 6th Gen M017 Wheels. Stainless Works 1 7/8 LTs. DSE and PAFDT Suspension components. |
04-09-2020, 04:50 PM | #8 |
Drives: 2015 Black rs/ss/1le Join Date: Apr 2018
Location: PA
Posts: 271
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04-09-2020, 09:51 PM | #9 |
Drives: 2022 1SS 1LE A10 BCD WCT+PDR Join Date: Mar 2008
Location: Johnstown, PA
Posts: 3,204
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I have the GM service manual, and just because they are calling out a torque plus angle tightening method does not mean the bolt is a TTY. In fact GM does not say to replace all bolts. On the suspension components, they call out replacing (but not always??) the lock nut, which I've reused. On my tracked 1LE. For 5 years. They are covering their ass.
The only place I use threadlocker, Permatex #27200 (high temp/high strength) is on the caliper to knuckle bots. GM does say to replace the caliper to knuckle bolts but I'd go broke replacing them. I do not tighten to the GM spec, which if they are an actual TTY bolt it is possible this is the point of yield. The yield point is the point at which a bolt stretches but will not return to its original length. GM may not be yielding the bolt, they may just be spec'ing it to the point right before it permanently stretches. A stretched bolt does a better job at not loosening. A bolt that is stretched to far will not return to its original length, compromising it's integrity. So I bought new caliper bolts and did not tighten to the yield point (GM's spec). So they've never yielded (permanently stretched)and they won't loosen because I use high temp/high strength threadlocker. I paint stick them and lay eyes on them before every track day. I have never had a problem. Why does GM say replace? Maybe they actually do reach the yield point or they are again covering their asses. But how many caliper bolts are replaced during brake jobs. Not many. What I'm getting at is you do not need to replace the suspension bolts every time you loosen. GM says replace the nut, but I don't think it's necessary. Torque them to spec, paint stick them and look at them regularly if you track or auto cross. Or have bad roads. As for the torque specs, your 1LE specs are the same as the Z/28 suspension specs. I've done the entire Z/28 suspension kit, pieced together over a couple years. The GM service manual is worth the price.
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2022 1SS 1LE A10 BCD WCT+PDR2014 1SS 1LE NPP RECARO SIM-SOLD1995 Z28 M6 GSC PGM-SOLD1975 NOVA COUPE 300HP 350 TH350 FLASH RED-SOLD
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04-09-2020, 09:54 PM | #10 |
Drives: 2022 1SS 1LE A10 BCD WCT+PDR Join Date: Mar 2008
Location: Johnstown, PA
Posts: 3,204
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Well, I just checked ebay, lol, the actual paper service manual is going for quite alot more than what i paid for mine in 2014. $500+
But there are a few pdf files of it you can buy and also DVD's of it for cheap. Those would be worth getting for all the info GM ever wanted you to know about your car.
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2022 1SS 1LE A10 BCD WCT+PDR2014 1SS 1LE NPP RECARO SIM-SOLD1995 Z28 M6 GSC PGM-SOLD1975 NOVA COUPE 300HP 350 TH350 FLASH RED-SOLD
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04-10-2020, 06:11 AM | #11 |
In this link is a comprehensive build instruction including front and rear suspension. I "assume" most if not all of it applies to a 2015 (mine is a 2010). The whole TTY arguments are endless, but my take is spend the money for peace of mind, as the "Yield" in TTY means exactly that - the bolt has been stretched.
https://www.camaro5.com/forums/showthread.php?t=442230 |
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04-10-2020, 08:54 AM | #12 | |
Drives: 2015 Black rs/ss/1le Join Date: Apr 2018
Location: PA
Posts: 271
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04-10-2020, 11:08 AM | #13 | |
Drives: 2015 Black rs/ss/1le Join Date: Apr 2018
Location: PA
Posts: 271
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Quote:
Yeah, Maybe in my younger days I would skip replacing bolts. But I’m older and have more to lose now. I’m sure there is a safety margin designed into those bolts so people that reuse bolts should have no issues. But like you, I would worry. In the whole scheme of things the cost is negligible. Thanks again for the write-up. |
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