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Dropping the subframe #731341
January 01st 2018 8:20 am
January 01st 2018 8:20 am
Joined: Apr 2004
Posts: 1,667
Ireland
shaggy Offline OP
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shaggy  Offline OP
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I'm gonna remove the subframe from my G30 to do a front end rebuild / clean /repaint.

I have disconnected the brake hoses, shocks , sway bar & pitman arm. Next I'm gonna support the motor from above using heavy duty ratchet straps and remove the motor mount bolts.

Is it just a matter then of removing the 2 bolts either side that attach the subframe to the chassis?


79 chevy G30 cobra camper conversion.
[Linked Image]
Re: Dropping the subframe [Re: shaggy] #731353
January 01st 2018 6:50 pm
January 01st 2018 6:50 pm
Joined: Apr 2004
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Ireland
shaggy Offline OP
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shaggy  Offline OP
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Sorry make that 4 bolts on either side there's two more lower bolts on each side that are hidden out of view in these photos. Also there's a few clips to remove on the subframe for brake lines etc.

[Linked Image]

[Linked Image]


79 chevy G30 cobra camper conversion.
[Linked Image]
Re: Dropping the subframe [Re: shaggy] #731369
January 02nd 2018 9:50 am
January 02nd 2018 9:50 am
Joined: Sep 2013
Posts: 661
Indiana
tuner4life Offline
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tuner4life  Offline
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Indiana
I don't know about the G30, but on my g20, there were 4 horizontal bolts on each side and 3 vertical bolts on each side. Once the suspension was all removed the subframe was a piece of cake.

[Linked Image]


[Linked Image]
1985 Chevy G20 305ci/4spd Manual
Re: Dropping the subframe [Re: shaggy] #731407
January 02nd 2018 6:30 pm
January 02nd 2018 6:30 pm
Joined: Apr 2004
Posts: 1,667
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shaggy Offline OP
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shaggy  Offline OP
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Cheers, looks the same as the G30.
How did you support the motor?


I did the steering today.....

Before

[Linked Image]20180102_134245 by shagedemus, on Flickr

After

[Linked Image]20180102_165734 by shagedemus, on Flickr


79 chevy G30 cobra camper conversion.
[Linked Image]
Re: Dropping the subframe [Re: shaggy] #731456
January 03rd 2018 9:21 am
January 03rd 2018 9:21 am
Joined: Sep 2013
Posts: 661
Indiana
tuner4life Offline
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tuner4life  Offline
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Looks very nice. I love seeing suspension parts that are clean and not covered in grease!

I supported the oil pan with a home made "cradle" of sorts that I made from 2x4 lumber and then 2 jackstands.under the wood cradle. (You can kind of see the jack stands in the picture I posted). The trans mount was still installed to hold the rear up.


[Linked Image]
1985 Chevy G20 305ci/4spd Manual
Re: Dropping the subframe [Re: shaggy] #731480
January 03rd 2018 2:27 pm
January 03rd 2018 2:27 pm
Joined: Apr 2004
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shaggy Offline OP
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shaggy  Offline OP
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Cool that's exactly what I was planning to do. Good to know it works and doesn't get in the way.
Great minds think alike or fools seldom differ..... hopefully the former smile

More parts cleaned masked and painted with zinc/aluminium paint.

[Linked Image]20180103_174724 by shagedemus, on Flickr

[Linked Image]20180103_174659 by shagedemus, on Flickr

[Linked Image]20180103_174646 by shagedemus, on Flickr


79 chevy G30 cobra camper conversion.
[Linked Image]
Re: Dropping the subframe [Re: shaggy] #731538
January 05th 2018 1:24 pm
January 05th 2018 1:24 pm
Joined: Apr 2004
Posts: 1,667
Ireland
shaggy Offline OP
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shaggy  Offline OP
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Joined: Apr 2004
Posts: 1,667
Ireland
More photos. I took the subframe out today.The only issue I had was one of the bolts was difficult to remove because it was so near the header. I had to grind down the end that protruded beyond the captive nut to shorten the bolt and get it out. At it's original length the bolt head was hitting the header before it was all the way out of the captive nut.

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]


79 chevy G30 cobra camper conversion.
[Linked Image]
Re: Dropping the subframe [Re: shaggy] #733421
February 24th 2018 4:58 pm
February 24th 2018 4:58 pm
Joined: Apr 2004
Posts: 1,667
Ireland
shaggy Offline OP
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shaggy  Offline OP
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Joined: Apr 2004
Posts: 1,667
Ireland
More photos , I've had the subframe shotblasted and I've cleaned and repainted everything. I've replace upper and lower balljoints , sway bar bushes , hub bearings and seals , idler arm , pitman arm , all steering rods and adjusters.

[Linked Image]20180224_173036 by shagedemus, on Flickr

[Linked Image]20180224_161457 by shagedemus, on Flickr

[Linked Image]20180224_161253 by shagedemus, on Flickr


79 chevy G30 cobra camper conversion.
[Linked Image]

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