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monte carlo suspenion conversion???? is it possible


brianteel

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The front suspension is basically the same except for the different brake sizes. I believe the rear suspension would be very difficult to swap. A long time ago, somebody here posted cutaway pictures of the 1.5 gen wheel well/strut towers that showed they were built different than the 1st gen ones. I guess you could swap in the Monte Carlo wheel wells/floor pans, but for that much work, it wouldn't be worth it.

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I wouldn't bother.

With the availability of rear lowering springs, you won't gain anything from cutting and welding in the strut towers from a Monte. You'd end up with a weird Frankenstein-mobile that probably won't be as structurally sound as what you had before.

The transverse fiberglass leaf setup is actually superior in handling and lighter weight.

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You're just dying to find info arent you Brian...lol. Just wait until next week and i'll tell you, Travis and I will be bolting mine up this weekend

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Been there done that, I used the same strut towers, but cut a slot in them and hammered them out then had my dad weld in some very thinck steel plates close to .1" Than i built a strut tower brace, you need to fabricate upper plates for the springs from gen 1.5 parts, as for the lowering im still waiting for the springs to settle. The car isnt some weird structurally unsound frankensein mobile as mentioned before.

 

Im in Martinsville if you want to see it.

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Might want to keep an eye on this link.http://www.mymonte.com/discussion/shwmessage.aspx?ForumID=17&MessageID=177798

 

Wow, is the GMPP suspension really worth that much work?

From my comparison, the 2nd gen W's are more cost-reduced and cheaper designs like 3-bolt front hubs vs. 4-bolt and integrated wheel speed sensors. Going with ST, Eibach, or Intrax sounds a LOT cheaper. Swapping front struts is also a lot easier with the older design. If it's just for bigger brakes, since you'd have to cut & weld to adapt the knuckle to LCA, I would think if cutting & welding is involved, might as well just cut & weld some brackets onto the existing knuckles and use C5 13" front brakes.

When I explored this possibility 5yrs ago, it didn't seem worthwhile. :shrug:

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It would be a dumb idea to do such a labor intense job for sub-par results.

 

I think Shawn said it right. Its really pointless when there are plenty of options for these cars.

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well when you have two cars parked right next to eachother..... its not a $750 investment for rear coilovers/dropping stock front suspension. Also the bigger brakes will be a big help to start out with for autocross and fun street racing without spending a good chunk of change on the C5 or F-body setup. All that can be aranged and upgraded later..

665715_172_full.jpg

 

plus this is a minor project compared to what ive been doing....

 

So we'll let ya know how it comes out

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Might want to keep an eye on this link.http://www.mymonte.com/discussion/shwmessage.aspx?ForumID=17&MessageID=177798

 

Wow, is the GMPP suspension really worth that much work?

From my comparison, the 2nd gen W's are more cost-reduced and cheaper designs like 3-bolt front hubs vs. 4-bolt and integrated wheel speed sensors. Going with ST, Eibach, or Intrax sounds a LOT cheaper. Swapping front struts is also a lot easier with the older design. If it's just for bigger brakes, since you'd have to cut & weld to adapt the knuckle to LCA, I would think if cutting & welding is involved, might as well just cut & weld some brackets onto the existing knuckles and use C5 13" front brakes.

When I explored this possibility 5yrs ago, it didn't seem worthwhile. :shrug:

 

No cutting of streering knuckle will be done. the only cutting was just to allow lower control arms mount through one bushing. then measure for new complete lower control arm. So far labor intense is in the research of it. Once determined what needs to be done, it will be a lot easier.

Why attempt this project?

You have bigger brakes or f-body type, adjustable strut option, a hell of a lot bigger wheel bearing, camber adjustability and a stronger front suspension. The parts are common and inexpensive. You'll spend more on a set of vented cross drilled rotors then I will upgrading to alot bigger brake. The problem with using bigger brakes on the old strut is the design is weak. Make brackets to hang calipers over 13 inch rotors. One hard panic stop it will bend the strut. Were the caliper mounts. Not to mention the vibration possibilities. (my older brother is a engineer for GM and part of the ecotech design team. He was attament about strut damage with larger brakes. Talking about all w bodies with the stamped cartridge type strut.)

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and wtf is with the double posting!?

I'm sorry who are you?

 

Anyways,

well when you have a monte carlo sitting next to the car, it seems pointless to go spend money on the same setup doesnt it?

ok just checkin

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You have bigger brakes or f-body type, adjustable strut option, a hell of a lot bigger wheel bearing, camber adjustability and a stronger front suspension. The parts are common and inexpensive. You'll spend more on a set of vented cross drilled rotors then I will upgrading to alot bigger brake. The problem with using bigger brakes on the old strut is the design is weak. Make brackets to hang calipers over 13 inch rotors. One hard panic stop it will bend the strut. Were the caliper mounts. Not to mention the vibration possibilities. (my older brother is a engineer for GM and part of the ecotech design team. He was attament about strut damage with larger brakes. Talking about all w bodies with the stamped cartridge type strut.)

 

Is the wheel bearing that much bigger? I haven't measured, only seen them in photos such as here, and it looks a lot smaller if anything. Plus, they have a rather high failure rate, I just assumed it was because they were smaller than the older 4-bolt version which has a lower failure rate.

I also don't see how the stamped strut design is any more likely to bend than the "newer" version which only has 2 stamped ears attaching it to a cast iron knuckle. To me, the curved shape of the stamped design appears to have more structural rigidity and resistance to bending than the conventional cast knuckle bolted to 2 stamped ears. Of course, I'm no engineer so you're probably right, I just don't see it.

There's a guy with 13" C4 Corvette brakes on his existing knuckles and I haven't heard anything about bending problems.

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The knuckles i'am using are an aluminum alloy. Nothing stamped about them. Cast caliper mounts also. The bearing is thicker and also larger in diameter. I will post a photo as soon as my girlfriend brings my cam back. Should be tonight.

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Well, I wasn't talking about the knuckle itself being stamped, but the strut-to-knuckle attachment is just stamped sheetmetal, much smaller and appears to be much less resistant to bending to my eyes.

You sure you're seeing a bigger bearing and not the additional bulk of the integrated wheel speed sensors? Again today I talked to another 2nd gen W-body owner that needed new front wheel bearings. They surely can't be any better than the old design.

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