dropping subframes help

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Dec 6, 2016 | 09:08 PM

jtswenson

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Racer

Joined: Jan 2016

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dropping subframes help

Hi,

I'm planning to drop both subframes on my zr1 as i'm going to freshen up the engine, transaxle, and replace the clutch. Does anyone have any links to step by step instructions or videos or anything else that could be beneficial?

I don't, yet, have a service manual but is one available in pdf form online?

Thanks guys!

Jeremy

Dec 7, 2016 | 08:52 AM

Garry in AZ

Pro

Joined: Oct 2014

Posts: 616

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From: Gilbert AZ

With a C6 you don't have subframes. You have to disassemble the suspension components and steering. The C6 cars including the Z06 and ZR1 use full length frame rails.

Garry

Dec 7, 2016 | 09:38 AM

jft69z

Drifting

Joined: Nov 2011

Posts: 1,843

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From: western NY

Here's a few links to get you going. The front & rear cradles DO come off separate, tied together by the torque tube, no full frame. I used a 1000 lb lift table to remove my ZR1 rear cradle/diff/transmission recently & it worked really nice. I got it from Harbor freight (yeah I know, cheap but worked really well). Keep in mind you have to be careful about tipping the rear too low or you can damage the firewall if the back of the engine hits it (among numerous other things to watch out for).

Some type of service manual or subscription to alldata diy would be your best investment too, I think.

https://www.corvetteforum.com/forums...on-a-lift.html

https://www.corvetteforum.com/forums...in-2005-a.html

https://www.corvetteforum.com/forums...full-pics.html

https://www.corvetteforum.com/forums...n-4-0-a-2.html

http://www.harborfreight.com/1000-lb...art-69148.html

Last edited by jft69z; Dec 7, 2016 at 09:55 AM.

Dec 7, 2016 | 10:25 AM

revilingfool

Instructor

Joined: Aug 2016

Posts: 146

Likes: 29

Quote:

Originally Posted by Garry in AZ

With a C6 you don't have subframes. You have to disassemble the suspension components and steering. The C6 cars including the Z06 and ZR1 use full length frame rails.

Garry

I think he's talking about the engine and transmission cradle.

Its not about dropping them per say, its about getting them back in lol. You can drop them down onto jack stands if you like.

The best bet is to fashion some sort of table or stand that can be adjusted to bolt everything back up as one unit, at least in my opinion. If you drop them onto stands and then something shifts, its going to be tough to line up the bolt holes again with all of the weight on stands.

Dec 8, 2016 | 12:12 AM

jtswenson

Thread Starter

Racer

Joined: Jan 2016

Posts: 291

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thanks for the replies, guys. i have 2 1000lb pneumatic motorcycle lifts, so I think i'll use those. being it's all coming out, would you recommend dropping both cradles together simultaneously or pull the rear first along with the torque tube and leave the front separate?

Thanks again!

Dec 8, 2016 | 06:16 AM

96GS#007

Race Director

Joined: Apr 2000

Posts: 15,344

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From: Texas

Quote:

Originally Posted by jtswenson

Drop together and then separate from the torque tube.