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Largest wrench and socket sizes on a C3?

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Old Jun 30, 2022 | 06:31 AM
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Default Largest wrench and socket sizes on a C3?

Hi guys,
I've bought a car!
Now I need to "tool up" for the '69 L46 coupe that will arrive in late August.
Can anyone tell me how large of a socket and wrench I might need if I'm doing the work myself?
My man-cave is set up quite well for metric stuff, but I'm having to relearn what inches are...
Thanks!
Steve - an American in Holland
'69 L46 Coupe
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Old Jun 30, 2022 | 07:47 AM
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For now just plus up your wrenches and sockets from 11/32 to 1" SAE and you will be fine for most maintenance.
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Old Jun 30, 2022 | 07:58 AM
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Don't forget a Torque wrench. Highest torque spec I rememeber is 140 for the front caliper halfs.
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Old Jun 30, 2022 | 08:23 AM
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Originally Posted by Mr D.
For now just plus up your wrenches and sockets from 11/32 to 1" SAE and you will be fine for most maintenance.
Thanks Mr D,
Indeed, I just found in some book that recommended 1 inch for wrenches and 1-1/8 inch for the largest socket.
So, I just ordered a set of Milwaukee wrenches that go up to one inch. An jet-plane mechanic friend of mine showed me one of the new Milwaukee wrenches and they're great, and about 1/3 the price of the Snap-On that he and his KLM colleagues use.
Now I just need to find a set of sockets.
Cheers,
Steve, in the NLs
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Old Jun 30, 2022 | 08:25 AM
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Originally Posted by cottoneg
Don't forget a Torque wrench. Highest torque spec I rememeber is 140 for the front caliper halfs.
Thanks cottoneg,
I have (albeit cheap) torque wrenches already, but I'll have to check the range of my larger one. Thanks a bunch for the "140" number. I like numbers...
Cheers,
Steve, in the NLs
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Old Jun 30, 2022 | 09:20 AM
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Be sure to pick up a shop manual, and assembly manual. Original copies from eBay are likely to have better quality photos than reprints.

I think that 1 1/8" nut is on the steering box, holding the Pitman arm on. That might even be higher than 140 lb-ft when it goes back on, but not by much. It'll be in the shop manual whatever it is.

Congratulations! Please post photos when you get the car, and be sure to drive the wheels off!
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Old Jun 30, 2022 | 10:08 AM
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Originally Posted by Bikespace

I think that 1 1/8" nut is on the steering box, holding the Pitman arm on. That might even be higher than 140 lb-ft when it goes back on, but not by much. It'll be in the shop manual whatever it is.
It's not an often occurrence to ever have to remove the steering box pitman arm. It requires a special puller and a socket that I could NOT find locally in all the tool stores. I have 174,000 miles on my 1979 Vette and it's the first time for me. It's that uncommon to ever need it, But I borrowed one from my master mechanic son-in-lawn. It's an odd ball 1 5/16th inch.

But typically, a set of 1/4 inch through maybe 1 inch is the most common. Lot's of 9/16th and 1/2 nuts and bolts.
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Old Jun 30, 2022 | 10:19 AM
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Originally Posted by Bikespace
Be sure to pick up a shop manual, and assembly manual. Original copies from eBay are likely to have better quality photos than reprints.

I think that 1 1/8" nut is on the steering box, holding the Pitman arm on. That might even be higher than 140 lb-ft when it goes back on, but not by much. It'll be in the shop manual whatever it is.

Congratulations! Please post photos when you get the car, and be sure to drive the wheels off!
Thanks Bikespace! (I'm a push- and motor-biker, too)
I'm working on getting those often-recommended manuals, but I did NOT think about that I should be looking for original copies vs reprints. Indeed, the quality of the photos is important for a noob like me.
Don't worry, I will surely be telling the world about my C3 once gets into my physical possession!
Cheers,
Steve, in the NLs
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Old Jun 30, 2022 | 10:24 AM
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Originally Posted by gkull
It's not an often occurrence to ever have to remove the steering box pitman arm. It requires a special puller and a socket that I could NOT find locally in all the tool stores. I have 174,000 miles on my 1979 Vette and it's the first time for me. It's that uncommon to ever need it, But I borrowed one from my master mechanic son-in-lawn. It's an odd ball 1 5/16th inch.

But typically, a set of 1/4 inch through maybe 1 inch is the most common. Lot's of 9/16th and 1/2 nuts and bolts.
Well...in fact my car has a (Steeroids?) rack and pinion system, so who knows WHAT fasteners are on there?
Thanks!
Steve, in the NLs
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Old Jun 30, 2022 | 10:45 AM
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Originally Posted by ElmrPhD
Well...in fact my car has a (Steeroids?) rack and pinion system, so who knows WHAT fasteners are on there?
Thanks!
Steve, in the NLs
I have sets of Haynes manuals and parts of them aren't very clear or well written. The shop that I worked at paid for an annual online service that was Very good. This might work for you.

1969 Corvette Shop/Service Manual (zip-corvette.com)
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Old Jun 30, 2022 | 11:24 AM
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Originally Posted by gkull
But typically, a set of 1/4 inch through maybe 1 inch is the most common. Lot's of 9/16th and 1/2 nuts and bolts.
Here are my additions to the suggestions (underlined, italics are what I seem to use most often):
Especially for interior work, get 6-point sockets: 3/16in., 7/32in., 1/4in., 9/32in., 5/16in., 11/32in., 3/8in., 7/16in., 1/2in. The small interior self-tapping screws used in the dash and console will often not be gripped securely with a 12 point socket.
Flare nut wrenches for any work on brake or fuel connections: 3/8 x 7/16, 1/2 x 9/16, 5/8 x 11/16

Originally Posted by ElmrPhD
I'm working on getting those often-recommended manuals, but I did NOT think about that I should be looking for original copies vs reprints. Indeed, the quality of the photos is important for a noob like me.
I can't find from whom I bought them, but my repro manuals, both chassis and service, are excellent quality. No issues at all with poorly reproduced photos or illustrations. I think they may have come from eBay but that's not narrowing it down much.
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Old Jun 30, 2022 | 12:16 PM
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Originally Posted by ElmrPhD
Thanks Bikespace! (I'm a push- and motor-biker, too)
I'm working on getting those often-recommended manuals, but I did NOT think about that I should be looking for original copies vs reprints. Indeed, the quality of the photos is important for a noob like me.
Don't worry, I will surely be telling the world about my C3 once gets into my physical possession!
Cheers,
Steve, in the NLs
Originally Posted by 67:72
I can't find from whom I bought them, but my repro manuals, both chassis and service, are excellent quality. No issues at all with poorly reproduced photos or illustrations. I think they may have come from eBay but that's not narrowing it down much.
I only mention it because I noticed a difference. @interpon documented his similar observations in a thread I can no longer find, but is on the Forum somewhere.

Perhaps it is only a problem for the late 70s manuals.

Best of luck to you, and I'm looking forward to reading your build/restoration thread!

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Old Jun 30, 2022 | 12:22 PM
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My go-to library (1973)

1) Corvette Factory Assembly Instruction Manual (AIM) $22.00
2) Chevrolet Chassis Service Manual $35.00
3) Chevrolet Chassis Overhaul Manual $28.00
4) Motor Manual $10.00
5) Corvette Technical Information and Judging Guide $75.00
6) 0OSOEZ Wiring Guides $50.00

Bonus Items
1) Chevrolet Corvette Parts and Illustration Catalog 1953 to 1982 $75.00 (for paper)
2) Haynes Automotive Heating and Air Conditioning Manual $15.00
2) Corvette by the Numbers 1955 - 1982 $70.00

I adjust the above library based on what year Vette I own, currently on #10 so my library gets kind of full. I'm a manual and tool *****.
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Old Jun 30, 2022 | 01:33 PM
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The only tools you need are a can of WD40 and a roll of duct tape. The WD40 is for things that are supposed to move and don’t and the duct tape for things that move and shouldn’t.
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Old Jun 30, 2022 | 02:26 PM
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Originally Posted by gkull
I have sets of Haynes manuals and parts of them aren't very clear or well written. The shop that I worked at paid for an annual online service that was Very good. This might work for you.

1969 Corvette Shop/Service Manual (zip-corvette.com)
Thanks, again.
Yes, I will definitely be getting one of those, along with the AIM. Apparently, those are the "required reading" for C3s.
Cheers,
Steve, in the NLs
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Old Jun 30, 2022 | 02:32 PM
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Originally Posted by 67:72
Here are my additions to the suggestions (underlined, italics are what I seem to use most often):
Especially for interior work, get 6-point sockets: 3/16in., 7/32in., 1/4in., 9/32in., 5/16in., 11/32in., 3/8in., 7/16in., 1/2in. The small interior self-tapping screws used in the dash and console will often not be gripped securely with a 12 point socket.
Flare nut wrenches for any work on brake or fuel connections: 3/8 x 7/16, 1/2 x 9/16, 5/8 x 11/16



I can't find from whom I bought them, but my repro manuals, both chassis and service, are excellent quality. No issues at all with poorly reproduced photos or illustrations. I think they may have come from eBay but that's not narrowing it down much.
Thanks 67:72!!
Excellent, useful, specific information...which WILL be heeded! (But man, I hate fractions!)
Steve, in the NLs
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Old Jun 30, 2022 | 02:35 PM
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Originally Posted by Mr D.
My go-to library (1973)

1) Corvette Factory Assembly Instruction Manual (AIM) $22.00
2) Chevrolet Chassis Service Manual $35.00
3) Chevrolet Chassis Overhaul Manual $28.00
4) Motor Manual $10.00
5) Corvette Technical Information and Judging Guide $75.00
6) 0OSOEZ Wiring Guides $50.00

Bonus Items
1) Chevrolet Corvette Parts and Illustration Catalog 1953 to 1982 $75.00 (for paper)
2) Haynes Automotive Heating and Air Conditioning Manual $15.00
2) Corvette by the Numbers 1955 - 1982 $70.00

I adjust the above library based on what year Vette I own, currently on #10 so my library gets kind of full. I'm a manual and tool *****.
Thanks, again, Mr D,
I'm definitely getting 1) and 2) a.s.a.p. The others will be Xmas and birthday presents...
Cheers,
Steve, in the NLs
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Old Jun 30, 2022 | 06:50 PM
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Originally Posted by Mr D.
My go-to library (1973)

1) Corvette Factory Assembly Instruction Manual (AIM) $22.00
2) Chevrolet Chassis Service Manual $35.00
3) Chevrolet Chassis Overhaul Manual $28.00
4) Motor Manual $10.00
5) Corvette Technical Information and Judging Guide $75.00
6) 0OSOEZ Wiring Guides $50.00

Bonus Items
1) Chevrolet Corvette Parts and Illustration Catalog 1953 to 1982 $75.00 (for paper)
2) Haynes Automotive Heating and Air Conditioning Manual $15.00
2) Corvette by the Numbers 1955 - 1982 $70.00

I adjust the above library based on what year Vette I own, currently on #10 so my library gets kind of full. I'm a manual and tool *****.
I thought Dr Rebuild hung it up long ago. Can you still get the OOSOEZ diagrams from them? I don’t want to risk an order that doesn’t get filled.
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Old Jun 30, 2022 | 08:52 PM
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Originally Posted by 69L88
I thought Dr Rebuild hung it up long ago. Can you still get the OOSOEZ diagrams from them? I don’t want to risk an order that doesn’t get filled.
They are still on his website, and it appears to be active. I ordered some parts yesterday but still waiting for the order to confirm so we will see.
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Old Jun 30, 2022 | 09:44 PM
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Originally Posted by 69L88
I thought Dr Rebuild hung it up long ago. Can you still get the OOSOEZ diagrams from them? I don’t want to risk an order that doesn’t get filled.
Originally Posted by Mr D.
They are still on his website, and it appears to be active. I ordered some parts yesterday but still waiting for the order to confirm so we will see.
He shut down during Covid for a year or more but opened back up earlier this year. I've ordered and received items in the last 2 months or so.
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