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cap for steering rack

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Old Feb 15, 2020 | 06:08 AM
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Default cap for steering rack

Does anyone know if this part is available? 89 C4. Part missing on mine. OOPS I circled the wrong it is the pinion cover. Just outside circle lower left. Sorry


Last edited by kenmohr; Feb 16, 2020 at 01:05 PM.
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Old Feb 15, 2020 | 11:01 AM
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Some years the actual 'adjuster plug' was serviced and for some years NOT.. There should be also a spring behind it and then also of course the flat adjuster hex plug nut. You might reach out to some of the re-builders. Older SPO Catalogs I have are certainly inconclusive regarding the 'plug'.


Last edited by WVZR-1; Feb 15, 2020 at 11:28 AM.
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Old Feb 16, 2020 | 11:41 PM
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There is a cap on the bottom, nut for spool valve bearing and snap ring. IDK if they're still available separately.. P/N 7844439 Cover

Last edited by Kevova; Feb 17, 2020 at 12:12 AM.
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Old Feb 17, 2020 | 06:47 AM
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Thank You. I have been looking and will keep looking.
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Old Feb 17, 2020 | 07:38 AM
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If you Google GM P/N xxxxxxxxx it usually will bring up sources.
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Old Feb 17, 2020 | 10:19 AM
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Originally Posted by Kevova
There is a cap on the bottom, nut for spool valve bearing and snap ring. IDK if they're still available separately.. P/N 7844439 Cover

That ain't for a C4 I'm quite sure! Looks to be for maybe a 'center take-off' rack.

........................................ ..........................

Thru '88 the 'adjust plug' #15 the OP mentions is part #'d as 7841283. From '89 forward it's mentioned only as being serviced with the gear kit (rack & pinion). I mentioned reaching out to some re-builders with the question OR if someone has a 'JUNK' rack maybe they would supply him with one. OP mentioned car being an '89. I mentioned SPO Catalogs seem to have conflicted info.

It seems that now the OP has posted back looking for the cover. Thru '88 it's part #'d as 7846884, serviced thru '88. Later years being serviced with gear. Again reach out to a re-builder OR just get a 'JUNK' one from someone with a rack. Actually the cover # looks to maybe do also most '93 and earlier GM FWD racks other than 'center take-off'.

Last edited by WVZR-1; Feb 17, 2020 at 11:00 AM.
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Old Feb 18, 2020 | 05:44 AM
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Thinking may sell it as a core. I will keep looking.
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Old Feb 18, 2020 | 10:09 AM
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Cap was used well beyond 88. Around 88/89 GM went away from dealers resealing rack and pinion due to lack of long term success. Starting late 88-89 corvette steering gear letter code was stamped in cover. After finding early Y car parts catalog ; the stub shaft bearing and seal kit is the same 88 + . The cap suggested fits that bore. If cap comes in quanity not individually, local dealer maybe reluctant to order part. Presently eBay dealer shows 4 available.
Your other easy option would be go to a "pick n pull" salvage yard with long flat screw driver and a hammer. Find GM rack & pinions and knock the cap off.
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Old Feb 18, 2020 | 11:40 AM
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Originally Posted by Kevova
Cap was used well beyond 88. Around 88/89 GM went away from dealers resealing rack and pinion due to lack of long term success. Starting late 88-89 corvette steering gear letter code was stamped in cover. After finding early Y car parts catalog ; the stub shaft bearing and seal kit is the same 88 + . The cap suggested fits that bore. If cap comes in quanity not individually, local dealer maybe reluctant to order part. Presently eBay dealer shows 4 available.
Your other easy option would be go to a "pick n pull" salvage yard with long flat screw driver and a hammer. Find GM rack & pinions and knock the cap off.

I looked on ebay and didn't find it. Can you give me a link? Mine is an 89 but everyone says they can't get it.
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Old Feb 18, 2020 | 01:28 PM
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IDK what to tell you, other than head to.pick n pull and knock a cap off and see. If you deal with a independent repair shop, they may have a GM rack in their recycling pile to get a cap.
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Old Feb 19, 2020 | 05:31 AM
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I was going to rebuild and keep as a spare. I think I'll put it on the shelf as is and keep as a core or just toss it. Thanks all.
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Old Feb 19, 2020 | 10:45 AM
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Originally Posted by kenmohr
I was going to rebuild and keep as a spare. I think I'll put it on the shelf as is and keep as a core or just toss it. Thanks all.
Is it a 2-turn rack or just a base ratio? If by chance a 2-turn it's for sure NOT a just 'toss it'! Just the cap shouldn't be a big deal.
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Old Feb 20, 2020 | 06:54 AM
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Originally Posted by WVZR-1
Is it a 2-turn rack or just a base ratio? If by chance a 2-turn it's for sure NOT a just 'toss it'! Just the cap shouldn't be a big deal.
It is a two turn. the main reason I want to keep it. I have 4 - 6 hours trying to find one. Thank You for your help. I haven't driven the Vette with the new 2 1/4 turn. May get that done this weekend.
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