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Anybody have measurements for an 88 cradle? by Icelander
Started on: 01-08-2007 01:17 AM
Replies: 8
Last post by: fieroguru on 01-10-2007 06:41 AM
Icelander
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Report this Post01-08-2007 01:17 AM Click Here to See the Profile for IcelanderSend a Private Message to IcelanderDirect Link to This Post
I bought a spare cradle off an '86 Fiero. My plan was to use this cradle to set up my eventual engine swap.

The more I think about it, the more I start to wonder at how hard it would be to set up an '88-style rear suspension while I'm putting the pennies together to get the engine.

Has anybody done this? Does anyone have a cradle they can take photos/measurements from?

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Kendall (Icelander) Whitlatch
'85 Fiero 2M4 - 5spd Isuzu
'67 LeMans/GTO clone 6.5 litre TH400
All the rest aren't Pontiacs, so what does it matter?

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Icelander
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Report this Post01-08-2007 02:42 PM Click Here to See the Profile for IcelanderSend a Private Message to IcelanderDirect Link to This Post
bump
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Phil
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Report this Post01-08-2007 03:35 PM Click Here to See the Profile for PhilSend a Private Message to PhilDirect Link to This Post
Check this http://heldmotorsports.com/Fiero/88EngineCradle...
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Marvin McInnis
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Report this Post01-08-2007 05:39 PM Click Here to See the Profile for Marvin McInnisClick Here to visit Marvin McInnis's HomePageSend a Private Message to Marvin McInnisDirect Link to This Post
Chapter 2 of the '88 GM/Helm Factory Service manual includes the following dimensional drawing of the '88 cradle:


[This message has been edited by Marvin McInnis (edited 01-08-2007).]

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AquaHusky
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Report this Post01-09-2007 04:38 PM Click Here to See the Profile for AquaHuskySend a Private Message to AquaHuskyDirect Link to This Post
I'm going to guess those numbers are in cm?
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FastIndyFiero
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Report this Post01-09-2007 04:53 PM Click Here to See the Profile for FastIndyFieroClick Here to visit FastIndyFiero's HomePageSend a Private Message to FastIndyFieroDirect Link to This Post
 
quote
Originally posted by AquaHusky:

I'm going to guess those numbers are in cm?


Close, millimeters.

The '88 cradle swap isn't terribly difficult. Just be very careful to check the rear member of the cradle for cracks. 88's are notorious for this.

Nate

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My Web page | The Turbo Super Duty Build.
You know that little voice that says it can't be done? I duct-taped mine's mouth shut and pushed it down a flight of stairs.

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AquaHusky
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Report this Post01-09-2007 05:29 PM Click Here to See the Profile for AquaHuskySend a Private Message to AquaHuskyDirect Link to This Post
Wheres about do these crack happen? I was looking it over recently and mine looks fine, but if I can weld stiffening plates to it, I'll do so.
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Steven Snyder
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Report this Post01-09-2007 10:39 PM Click Here to See the Profile for Steven SnyderClick Here to visit Steven Snyder's HomePageSend a Private Message to Steven SnyderDirect Link to This Post
I've never heard of the rear crossmember cracking anywhere; its pretty damn sturdy. On the other hand, the front crossmember does crack right around the holes that the front tranny mount bolts through. It would help to weld a plate in there.
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fieroguru
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Report this Post01-10-2007 06:41 AM Click Here to See the Profile for fieroguruSend a Private Message to fieroguruDirect Link to This Post
 
quote
Originally posted by Steven Snyder:

I've never heard of the rear crossmember cracking anywhere; its pretty damn sturdy. On the other hand, the front crossmember does crack right around the holes that the front tranny mount bolts through. It would help to weld a plate in there.


Here is where my 88 rear crossmember cracked - twice (SBC car):


I replaced both front and rear with 2 x 3 x 1/8" steel and have been crack free since.
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