Old 10-21-2019, 12:31 PM
redmondrr redmondrr is offline
Join Date: Nov 2006
Location: Clinton, TN
Posts: 50
Default 68 Firebird 400 Steering Improvement Help

Looking to improve the steering on my 68 FB 400 convertible. Has anyone fitted a later steering box? If so, from what vehicle and what else needs to be replaced. Many thanks!

Old 10-25-2019, 06:38 PM
Donovan Donovan is offline
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Join Date: Aug 2002
Location: Austin, TX, USA
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check the basics first. Is your rag joint new? If not they can make the steering feel very sloppy.

you can check for deflection with a helper.

Old 10-25-2019, 06:45 PM
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Stuart Stuart is offline
Join Date: Apr 2003
Location: Minneapolis
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What improvements are you looking for? A faster ratio, a different 'feel'? I don't know if it has been done for F body cars, but a 1993-1998 Jeep Grand Cherokee steering box is apparently a good upgrade for A body cars. Do a search in the suspension forum and you may be able to find more information.

Old 10-25-2019, 07:12 PM
JLMounce JLMounce is offline
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There's been several responses to your original thread in the suspension section of the site. If you haven't taken a look at those I would recommend it. I have my thoughts there for you as well.


1969 Pontiac Firebird
Old 10-27-2019, 09:07 AM
redmondrr redmondrr is offline
Join Date: Nov 2006
Location: Clinton, TN
Posts: 50

Thanks everyone. Looking for faster ratio and better road feel; however, I'll start by checking/changing the rag joint while I accumulate the parts for a complete change-out.

Old 10-27-2019, 09:56 PM
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RAJ7395 RAJ7395 is offline
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Chuck at www.powersteering.com can restore and update your original box to a fast ratio version. This will fix both your slop and ratio at the same time.

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Old 11-08-2019, 02:01 PM
68400BIRD 68400BIRD is offline
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Join Date: Jun 2009
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I did this upgrade in my car. Has very good steering response.

This is a really good website to help with first gen steering and suspension.

Old 11-09-2019, 12:52 AM
thews thews is offline
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I put a late model T/A box in my 69 (I think it was a 1980) and it bolted right in. A 2.5 lock-to-lock works way better than the original IMO.

Old 11-09-2019, 02:28 AM
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Scarebird Scarebird is offline
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Join Date: Nov 2002
Location: ABQ, USA
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Best solution short of rack is the 600 Series Delphi* style box - GC box does not compare. Another fix is Savitske's SCII kit,fixes the woes of the first gen geometry very efficiently.

* http://www.pro-touringf-body.com/


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