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front subframe

King+Sons

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We decided to drop the front subframe because everything needs sorted and one of the control arms is bent. After some cleaning, we’re now inspecting the subframe for cracks and so far it looks okay. (But we’re also looking at the reinforcement options.)

 

Are there any other problems here we should be looking for? And how important is it to replace the idler arm bushings? I’m reading about how the new (blue) ones don’t fit well on early cars, and ours is an early 1971.

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9 Comments


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Good work!

 

The subframe crack is obvious in pic 8. Look again :)

 

I believe the idler arm issue is only on very early cars. Definitely do them while you have everything apart IMO.

 

Nice pics!

 

Cheers,

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Ah, indeed. I just checked it again and there's actually two cracks--the other one isn't visible in these photos.

Edited by King+Sons

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Please address any cracks before going any further. My tii had multiple cracks in that location.

 

Regarding the two idler arm bushings, I suggest removing the blue outer shell from the new ones, then use a file to remove the outer sharp edge of the blue shell then press/knock it in the subframe.  Smear some grease to the inside of the blue piece then press/knock the inner (black) bushing into place.

 

Make sure to insert the idler arm into the subframe before you install the LH control arm.

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7 hours ago, ray_ said:

Good work!

 

The subframe crack is obvious in pic 8. Look again :)

 

I believe the idler arm issue is only on very early cars. Definitely do them while you have everything apart IMO.

 

Nice pics!

 

Cheers,

Knock the old (black) idler arm bushings out of the subframe with a drift (round punch). Looking inside the subframe tube, if there are two steel inserts, leave them alone.  Just use the black colored bushings from the new ones (and leave out the blue colored plastic outer sleeve). That's the way my 69 2002 was treated. 

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When installing the bushings with the blue sleeve, you're supposed to first separate the sleeve from the rest of the bushing, and then press the blue sleeves into the subframe. Once that's done, the rubber should sit fine. If you try to just force them in as one piece, they won't go in all the way and the plastic will start mushrooming out. I've learned this the hard way. 

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8 hours ago, yezzir said:

When installing the bushings with the blue sleeve, you're supposed to first separate the sleeve from the rest of the bushing, and then press the blue sleeves into the subframe. Once that's done, the rubber should sit fine. If you try to just force them in as one piece, they won't go in all the way and the plastic will start mushrooming out. I've learned this the hard way. 

That's what I suggested earlier.  🙄

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46 minutes ago, jgerock said:

That's what I suggested earlier.  🙄

You said to leave out the blue sleeves? I say use them! just don't install them while they're together.  EDIT: Just saw your earlier post. I second the method.

Edited by yezzir

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Well, I'm glad to see somebody else's "before" pictures look like your subframe is as greasy as mine...   These images will help me a lot when I get to this point.  

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