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Replace front cradle bushings in the car? by ag9123
Started on: 06-25-2020 11:04 PM
Replies: 4 (131 views)
Last post by: ag9123 on 07-05-2020 08:08 PM
ag9123
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Report this Post06-25-2020 11:04 PM Click Here to See the Profile for ag9123Click Here to Email ag9123Send a Private Message to ag9123Edit/Delete MessageReply w/QuoteDirect Link to This Post
Regarding the front cradle bushings, I'm looking to replace them in the car (not wanting to drop the whole cradle).
I have access to a lift. It looks like I can loosen the rear cradle bushing bolts ( aluminum bushings already installed) and remove the front cradle bolts while supporting the cradle.
Will this allow the cradle to drop enough to remove the old bushings and install the aluminum ones?
The whole works would be "hanging" from the strut mounts I assume...


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1984 Indy Fiero

[This message has been edited by ag9123 (edited 07-05-2020).]

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theogre
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Report this Post06-25-2020 11:31 PM Click Here to See the Profile for theogreClick Here to visit theogre's HomePageSend a Private Message to theogreEdit/Delete MessageReply w/QuoteDirect Link to This Post
Loosen back bolts w/ metal may not be enough. Better if front was done first.
May move but may also bend/break rear parts.

lift car some. Don't lift for you to get under the car.
Use floor jack and jack stands to support the cradle.

Most need to save outer shell so...
Heat the core until rubber starts to melt so you Very Carefully Pull/push the core out. (Propane thru the core works.)
Wait for rubber to cool.
Pry/Cut out the rubber.

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Dennis LaGrua
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Report this Post06-28-2020 08:16 AM Click Here to See the Profile for Dennis LaGruaClick Here to Email Dennis LaGruaSend a Private Message to Dennis LaGruaEdit/Delete MessageReply w/QuoteDirect Link to This Post
Must echo theogre's sentiment that loosening the rear cradle bolts will probably not allow the cradle to drop down and give you the necessary clearance to get the bushings out. Remember you cannot tilt the cradle on the back bolts as they go straight up. Leaving all weight on those might cause the cradle to bend. If you have a lift a possible way to do it would be to use a hydraulic table where you can support the cradle then remove all four cradle bolts and lower it down just enough to clear

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Spoon
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Report this Post06-28-2020 07:37 PM Click Here to See the Profile for SpoonSend a Private Message to SpoonEdit/Delete MessageReply w/QuoteDirect Link to This Post
I punched out the metal core and used a hole saw of appropriate diameter to drill out the rubber bushing. My cradle was on the floor.
Same canoe different river.



Spoon

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ag9123
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Report this Post07-05-2020 08:08 PM Click Here to See the Profile for ag9123Click Here to Email ag9123Send a Private Message to ag9123Edit/Delete MessageReply w/QuoteDirect Link to This Post
I was able to loosen up the rear cradle bushings with the lift supporting the front of the cradle. I lowered the cradle a couple inches, just enough to get the old rubber bushings out and the new aluminum ones in. Was not as bad as I thought it would be. It turns out that dropping the cradle a few inches in the front caused minimal movement at the rear cradle mounts due to the distance apart. I made sure that there was no excessive angle at the rear mounts. Seems to this is the way to go given that I already had the rear aluminum bushings installed. Regardless, major headache out of the way.
Now I need to get it aligned after replacing the following:

Cradle bushings (Aluminum)
Front upper ball joints (adjustable)
Front upper and lower control arm bushings (poly)
Inner and outer tierod ends
Front camber ( used 3mm washer in front, 9 mm washer at rear)
Front shocks (KYB Gas-A-Just)
Rear struts (KYB)
Rear control arm bushings (poly)
Rear balljoints
Rear tierods inner and outer

I didn't replace the front lower balljoints. They seemed tight. probably tackle those next.


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1984 Indy Fiero

[This message has been edited by ag9123 (edited 07-05-2020).]

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