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97481 Posts in 11715 Topics by 4581 Members
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16  Camaro Research Group Discussion / Maintenance / Firestone vs. Goodyear Poly-glas tires on: November 12, 2013, 10:12:04 PM
Hi Guys!!!  Question:  Is anyone out there running "Firestone Sport Car 200" tires??  If anyone is, do they wander like the Goodyears do??  I'm just trying to get some feedback on these (firestones) before I go and dive into a different set-up on my front end, that has been suggested in previous CRG members replies.  Just want to say "thanks" for everyone's input on this matter.
Don
17  Camaro Research Group Discussion / General Discussion / Re: "DMC" markings on NOS lug nuts on: October 31, 2013, 04:39:30 PM
Thank You Sir!!!!
http://www.deckernut.com/about.htm
'Decker Manufacturing Corp'  (DMC)  but NO idea when your lug nuts were manufacturered, maybe you can research within their parts line?
18  Camaro Research Group Discussion / Originality / Drive shaft color code on: October 29, 2013, 07:46:06 PM
I own a 69 Camaro with a 396/375 with a M-22 tranny.  Does anyone know what paint code color  the factory applied to the drive shaft for Big Block Camaros???   Thanks gang!!   Don
19  Camaro Research Group Discussion / General Discussion / Re: Antenna - Rear Quarter on: October 29, 2013, 07:26:44 PM
Yes, that my question, When was a rear antenna installed at factory??  When option "U73" was selected?  I would assume.  Thanks
The Options PDF is always helpful on those kinds of questions.  Also look at D80 about the spoiler issue.
My 12D 68 does have U73.

Or are we all mistaking your question? Do you mean when it happened in the assembly process?
20  Camaro Research Group Discussion / General Discussion / Re: "DMC" markings on NOS lug nuts on: October 29, 2013, 07:21:42 PM
Hopefully someone out there will "chime in" with the correct info.  Thanks for the reply. 
I don't know what the DMC stands for, but as Kurt has said there were sometimes more than one vendor for the same part. I have a original waffle style set on my car, although I do not know if this would have been correct.
21  Camaro Research Group Discussion / General Discussion / Re: Bumper Jack restoration service on: October 29, 2013, 07:19:02 PM
Ya, that was my thinking of what I'll probably have to do with the jack mast.  Thanks for the reply.
you can remove the jack head, and take the mast to a local plating company... and reassemble yourself..

22  Camaro Research Group Discussion / Maintenance / Re: goodyear polyglas tires on: October 29, 2013, 07:09:30 PM
Jeff, I will try these recommedation for proper alignment for Goodyear polyglas tires.  My biggest concern is at higher speeds.  Thanks for your input on this matter.    Don
Don-
Here is some good info on alignment with the Polyglas tires:
http://www.camaros.net/forums/showthread.php?t=193367

Although I was asking about info for my 68, your 69 should be similar.  I followed David Pozzi's alignment recommendations and my car drives very nicely with Polyglas F70-14s all the way around.  No 'wander' or 'pull' at all.  My car has all new suspension bushings, and the suspension bolts were all tightened to factory specs after the suspension settled.
23  Camaro Research Group Discussion / General Discussion / Bumper Jack restoration service on: October 28, 2013, 08:58:39 PM
Does anyone know of a restoration company that restores original "bumper jacks"?  I'm interested in getting the mast re-plated in
silver zinc.  Any info will be appreciated...thanks!  Don
24  Camaro Research Group Discussion / General Discussion / Re: Antenna - Rear Quarter on: October 28, 2013, 08:03:47 PM
Jim, What kind of radio is in your car??  AM/FM stereo?? Don
My 12E '68 came with one.
Jim
25  Camaro Research Group Discussion / General Discussion / Antenna - Rear Quarter on: October 28, 2013, 07:33:00 PM
Does someone know when factory installed radio antenna on rear quarter panel ??   Thanks!  Don
26  Camaro Research Group Discussion / General Discussion / "DMC" markings on NOS lug nuts on: October 28, 2013, 06:58:12 PM
Hi Guys.....Does anyone know what the "DMC"  stamp mark on NOS lug nuts stand for??  Just want to know for reference purposes.  thanks!
27  Camaro Research Group Discussion / Maintenance / Re: goodyear polyglas tires on: October 27, 2013, 07:03:59 PM
Steve, Thanks for the info....Don
My favorite tire on my Z was always the Goodyear Polyglas. The pic attached may be hard to see, but the tires are H60-15 and F70-15 Goodboots on the factory YH rims - these tires were on the car from '76 until a couple of years ago, when I finally sold them at the local auto flea market. Yes, they were a handful to drive, but a cooler tire never lived. Trips to the local 25 cent car wash always included a Brillo pad to clean the letters with -

Bias ply tires generally follow the ruts that are really on any road, interstates included. Ever notice how you can hydroplane easier in the right lane at speed on an interstate ? It's because of the slight depressions from trucks and heavy traffic in that lane, constantly, that funnel water in the lane, causing it to puddle and wedge under the tires. Radials resist it better, but bias ply builds are more sensitive to changes in the road surface. Couple that with manual steering, quick ratio, and these things were a challenge to drive - but I still love them (for the look !).

Driving my Pace Car home after purchase, some 125 miles in several July thunderstorms, was downright horrendous after so many years of radial tire equipped company vehicles (at high speeds). Car was all over the road, darting everywhere, hydroplaning, and drifting from side to side. First purchase after I got it home was a set of B.F. Goodrich Radial T/A's, which dramatically cured the ills noted on the ride home. I resolved never to run bias plies on the street, but as a show tire Goodyears still have the charisma.

Shame that Goodyear can't build a radial that looks like a Polyglas GT or Wide Tread GT of old -
 
Regards,
Steve
28  Camaro Research Group Discussion / Maintenance / Re: goodyear polyglas tires on: October 22, 2013, 02:53:03 PM
Mike, Thanks for taking the time to explain.  Some guys say "steering box" are "loose".  Rebuilders now use "Firm Feel" internals.  Don
If I recall the earlier alignment specs, there should be a certain amount of toe-in so when the car moves forward the road will force it outwards to take up any minor play in the steering. If the toe in/out is perfect then the steering can be prone to wandering, which what it sounds like you are experiencing.

Mike
29  Camaro Research Group Discussion / Maintenance / Re: goodyear polyglas tires on: October 22, 2013, 12:00:01 PM
How bad does your car wander on this rubber???
that's one of the 'characteristics' of bias belted tires...      Fun huh?  Smiley
30  Camaro Research Group Discussion / Maintenance / Re: goodyear polyglas tires on: October 22, 2013, 11:56:25 AM
Hi again!  I've never heard of "alignment specs" for these tires. Could you explain further please???  Don
Try tightening up the steering box. I did and it really helped
X2... and alignment?
Were the alignment specs for your bias belted tires followed when the tires were put on the car? Toe-in?
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