Upper and lower bushings are rubber. Is my front end a 73-87?

[chevy72blu]

My 72' had disk brakes installed by the PO and I've always had a suspicion that they were out of a 73-87 (had to grind and clearance for direct fit headers, etc).

Is there any sure fire way to tell what it is out of? The upper and lower bushings are rubber and I believe they are supposed to be steel on a 72.

Lastly, my steering box needs to be replaced. Is this a 73-87 part specific to the front end?

[Tx Firefighter]

If the bushing has a big nut and a washer, then 73-87

If the bushing looks like a giant bolt head with a grease zerk in the middle of the head, they're 72 and earlier parts.
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[mcmlxix]

You have 73+ upper control arms... like TX said ... not sure if it was a whole crossmember swap... didn't look that close...

Steering box will bolt onto the frame from 69-87 (or 91 on Suburban / Blazer)... There are, however, a few differences... The line connections chananged from SAE to metric in the 80's... They went to variable ratio in the later 70's...

I needed a 2WD box for my crossover steering on the Blazer. I purchased -AN fittings for the steering box and I had to swap the rag joint because the slpines didnt match my 72 steering shaft... The box came out of a late 80's C30 truck....

[chevy72blu]

Thank you guys for the info.

Are sway bars different for the 73+ and which one should I go with? I plan on just finding one of out a 73-87 burb in a yard, but ECE lists them for 67-72. The frames should be basically identical so I want a 73-87 bar and mounts, correct?

[Tx Firefighter]

Read the sway bar FAQ. I should answer most all of your sway bar questions in there.
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