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Topic: Just had a quick look at the underside

in Forum: C3 General Discussion


Just had a quick look at the underside

Posted: 10/28/15 11:42am Message 1 of 18
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Ash Fork, AZ - USA
Joined: 4/18/2007
Posts: 1058
Vette(s): 1981 Red Interior White exterior
After putting about 1.6 million miles in roadtrips on the car this summer(slight exaggeration) I noticed a couple of drips on the driveway. I tagged something pretty good in the Blue Ridge Mountains but didn't notice anything until just now.

The good news is that all the newer stuff that I have upgraded is just fine, bad news is that the rear differential, power steering slave cylinder and transmission pan(again) are leaking. I do need to replace the rear passenger hub assembly too, as the bearings are bad.

Time for a Borgeson. I was going to change the tranny and up the rear end eventually.  Probably go with a 700r4 and 3:70's or Dana's(hello Sarge?).

The need to do is the wheel hub. Everything else can wait until the house is up.



Dave C..........My mantra: I can not be bought!!      Long and short term leases available.
In the words of Zora Arkus-Duntov "Is your seat belt fastened? Alright, Let's go"


Yeah, I know, Shut up Dave.
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Re: Just had a quick look at the underside

Posted: 10/28/15 2:12pm Message 2 of 18
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WEST SENECA, NY - USA
Joined: 12/3/2001
Posts: 2379
Vette(s): 1981 Blue Ice Met. w/pearl ghost flames TKO500 5speed. LS1 Swap 3.45 Dana 44.
dads2vette said: 

The good news is that all the newer stuff that I have upgraded is just fine, bad news is that the rear differential, power steering slave cylinder and transmission pan(again) are leaking. I do need to replace the rear passenger hub assembly too, as the bearings are bad.

Time for a Borgeson. I was going to change the tranny and up the rear end eventually.  Probably go with a 700r4 and 3:70's or Dana's(hello Sarge?).

The need to do is the wheel hub. Everything else can wait until the house is up.


Can't go wrong with a Borgeson box. 
700R4 would be a good choice to replace that 350C.
Our '80-'82 differentials are the aluminum Dana 44 IRS. I had a guy in Texas rebuild mine with genuine Dana 3.54 gears and used a C4 posi unit/carrier. 3.73 would be quite a considerable jump from the stock 2.72's  Be very careful who you have redo your diff. Stay away from Duntov Motors. They build grenades.
As for you rear wheel bearing. I would either get rebuilt wheel bearing assemblies or complete t-arm's. We did complete t-arms on Barb's '78 SA at Ebo's place because they were original and we all felt it was best for her car since she drives it a lot like you do yours.

Keep in mind Bair's offers good quality rebuilding services for both diffs, wheel bearing assemblies and t-arms.




GEN III 5.7L "LS6" Engine swap
TKO500 5 spd.
3.54 Dana 44
'69 "N11" Sidepipes
Borgeson Steering Box
Born 8/1981
Sequence #3975




Click here to see more pics of my Vette on CarDomain.


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Re: Just had a quick look at the underside

Posted: 10/28/15 2:18pm Message 3 of 18
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Bellingham, MA - USA
Joined: 6/23/2014
Posts: 175
Vette(s): 1980 loaded red on red. 68,000 original miles. Second owner. Well documented with all original paperwork. NCRS Founders Award 9/27/14. NCRS Top Flight 10/12/14.
Sarge
You didn't mention what team finished first replacing Barbs Tarms.



Re: Just had a quick look at the underside

Posted: 10/28/15 3:49pm Message 4 of 18
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Ash Fork, AZ - USA
Joined: 4/18/2007
Posts: 1058
Vette(s): 1981 Red Interior White exterior
Yeah, Sarge. I'd go with Bair's. I was very impressed with their setup. Do you still have contact info on the guy that did your rear, cars rear?  We had a rear end rebuilt in the '67 Camaro and it blew up after 50 miles. 


Dave C..........My mantra: I can not be bought!!      Long and short term leases available.
In the words of Zora Arkus-Duntov "Is your seat belt fastened? Alright, Let's go"


Yeah, I know, Shut up Dave.
Lifetime Member #192


Re: Just had a quick look at the underside

Posted: 10/28/15 6:33pm Message 5 of 18
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Scottsdale, AZ - USA
Joined: 5/23/2007
Posts: 617
Vette(s): 1981 Corvette Two-Tone Claret color, 4 spd, C7 Vert
Dave,
You might look into an air-ride system.  Being 10 miles off the grid in AZ you may need more clearance and a winch on the front bumper!   Wink



      Only 34 years together

Re: Just had a quick look at the underside

Posted: 10/28/15 6:54pm Message 6 of 18
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Ash Fork, AZ - USA
Joined: 4/18/2007
Posts: 1058
Vette(s): 1981 Red Interior White exterior
Great Idea John. Maybe a 12" lift kit as well!


Dave C..........My mantra: I can not be bought!!      Long and short term leases available.
In the words of Zora Arkus-Duntov "Is your seat belt fastened? Alright, Let's go"


Yeah, I know, Shut up Dave.
Lifetime Member #192


Re: Just had a quick look at the underside

Posted: 10/29/15 3:30am Message 7 of 18
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WEST SENECA, NY - USA
Joined: 12/3/2001
Posts: 2379
Vette(s): 1981 Blue Ice Met. w/pearl ghost flames TKO500 5speed. LS1 Swap 3.45 Dana 44.
dads2vette said:  Do you still have contact info on the guy that did your rear, cars rear?  We had a rear end rebuilt in the '67 Camaro and it blew up after 50 miles. 


I'll do some searching this weekend. For some reason the website doesn't come up. He's a member on Digital Corvette. "tracdogg2" Mike is his name.

I like John's suggestion. Take it over to Gas Monkey Garage and have 'em put a lift, air ride and 33's on the vette. LOL




GEN III 5.7L "LS6" Engine swap
TKO500 5 spd.
3.54 Dana 44
'69 "N11" Sidepipes
Borgeson Steering Box
Born 8/1981
Sequence #3975




Click here to see more pics of my Vette on CarDomain.


Lifetime Member #26

Re: Just had a quick look at the underside

Posted: 10/29/15 4:41am Message 8 of 18
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Scottsdale, AZ - USA
Joined: 5/23/2007
Posts: 617
Vette(s): 1981 Corvette Two-Tone Claret color, 4 spd, C7 Vert



      Only 34 years together

Re: Just had a quick look at the underside

Posted: 10/29/15 10:05am Message 9 of 18
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Flanders, NJ - USA
Joined: 1/27/2004
Posts: 2553
Vette(s): 1982 Black, ZZ4, Hooker Side Pipes, 3.55 Rear, Rebuilt & upgraded 700R4, All new suspension, brakes, & new Charcoal interior.
Hey Dave, I would not recommend anything over 3.55:1 gears with the 700r4 trans. The first gear ratio in the trans is 3.08:1. I have 3.55 gears in mine and first is so quick it's crazy. Trust me you will be happy with 3.55's.
Dave



 

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Dave's '82


   

Re: Just had a quick look at the underside

Posted: 10/29/15 11:21am Message 10 of 18
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Gig Harbor, WA - USA
Joined: 10/2/2014
Posts: 405
Vette(s): 1973 L82 4 Speed Coupe - Very original, well documented driver/survivor. 2016 Bend Regional NCRS Top Flight.
Dave - aside from the leak you have at the diff., have you changed the fluid lately and put in some new posi additive ??

Earlier this year I had so many noises in my '73, I thought I had to change out everything from the door handles back. Bearings, clutches, gears, bushings, you name it. The car not only had the tight turn crunchies, it squeaked and had some funny noises going in a straight line and even over bumps.

Before opening that expensive can of worms, I ran the car up to temp and sucked out as much fluid as I could, then replaced it with two bottles of GM posi additive and topped it off with new 90w. That was followed up by a dozen figure eights in a nearby parking lot, a 10 mile drive on the highway and another dozen figure eights and it has been quiet as a mouse ever since. I was amazed and I can't believe I'm even tempting fate by typing this.

Might be worth a try.

And +1 on not going over the 3:55's. That's what I have with a close ratio 4 speed. Lots of RPM's going down the highway @ 65 MPH. Maintaining 70 for any length of time pushes my comfort level a bit with a 43 year old SB.  

 





|UPDATED|10/29/2015 11:21:29 AM (AZT)|/UPDATED|



John Sigmund
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NW NCRS Chapter Member



Duct tape is the new Black !!

in Forum: C3 General Discussion


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