70 442 w30's-Goodyear or Firestone tires?

Old October 12th, 2010, 06:29 PM
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70 442 w30's-Goodyear or Firestone tires?

Those of you who have original cars or had one new-Did they come with Goodyear or Firestone bias ply tires.?Have 3 of these cars now and restoring the 1 st one.need to know for sure before I buy a set .This is for 1970.Also were these 14" G70 series?
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Old October 12th, 2010, 09:02 PM
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My W30 has the original spare, which is a Uniroyal Tigerpaw G70 X 14. They do not reproduce this tire, so I went with the Firestone Wideovals. If your car had the PK5 tire option, it could have come with either the Goodyear, Uniroyal, or Firestone, whatever tire was on hand when your car came down the line. Unless you have an original tire from your car, there is no way to know which one was on your car when it was new.
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Old October 13th, 2010, 02:33 AM
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My 70 W-31 came with Goodyear Raised White Letter Polyglass GT G70 X 14
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Old October 13th, 2010, 04:37 AM
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The tires are RPO code PK5 and were generically described by Olds as "G70 x 14" Blackwall Wide Oval Tires with Raised White Letters"
They were supplied by Goodyear, Goodrich, Firestone, and Uniroyal.
Take your pick.
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Old October 13th, 2010, 08:47 AM
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Here is a photo of my original spare from a Fremont built '70 442.

IMG_0728.jpg
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Old October 13th, 2010, 06:15 PM
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very nice! seems like the Firestones were most used on the 70
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Old October 14th, 2010, 03:50 AM
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Has you spare wheel ever been painted?. If not, it is interesting to see the facroty 'argent' silver paint color.
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Old October 14th, 2010, 05:21 AM
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Originally Posted by Del70 View Post
Has you spare wheel ever been painted?. If not, it is interesting to see the facroty 'argent' silver paint color.
I have taped off the front of the spare wheel and painted with some wheel paint I got from Super Cars Unlimited many years ago.

The original paint on the front of the wheel IIRC was very thin paint and seemed to be faded . The paint on the back side of the wheel is still original and is very dark, almost black.
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Old October 14th, 2010, 05:25 AM
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I suppose there's the possibility that the tire brand varied among different assembly plants,and what was available at the time of assembly.
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Old October 14th, 2010, 06:02 AM
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looking for a cut and dry answer but the factory manual helps a lot.It could have been any of the 4 manufacturers.Just thinking about the w30's though since all built in lansing in 70 if they all had the same brand tire.Guess not -the one guy had uniroyals..thanks
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Old October 14th, 2010, 06:05 AM
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Although I don't remember what was O.E. on my BB '67 Impala SS, the second set was Goodyear Polyglass just as they came out, and I loved them! Think I put F-70's in front and G's in the rear.
Great improvement over O.E.!!!
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Old October 14th, 2010, 03:46 PM
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As tomsw31 said, they could come with any make tire, even the W-30s, which were all built in Lansing. But for what it's worth, my W-30 has the original spare and it's a Goodyear Polyglas.
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Old October 15th, 2010, 07:53 AM
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Originally Posted by wmachine View Post
The tires are RPO code PK5 and were generically described by Olds as "G70 x 14" Blackwall Wide Oval Tires with Raised White Letters"
They were supplied by Goodyear, Goodrich, Firestone, and Uniroyal.
Take your pick.
Originally Posted by BlackGold View Post
As tomsw31 said, they could come with any make tire, even the W-30s, which were all built in Lansing.
That statement is a little too broad. "Any make" includes the fifth tire maker for GM that year which is General. General did not make that specific tire, so it would have to be one of the other 4 that did make them.
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Old October 15th, 2010, 08:24 AM
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What I meant was if a 442 in Fremont got different tires than a 442 in Lansing.I guess it comes down to what was available at the time of assembly.
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Old October 15th, 2010, 06:03 PM
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Originally Posted by 507OLDS View Post
What I meant was if a 442 in Fremont got different tires than a 442 in Lansing.I guess it comes down to what was available at the time of assembly.
And I'll bet that is about all we may ever know.
But I wonder what went on at the time. I'm sure all of the manufactures had a keen interest in having their tires on as many cars as possible. What really did dictate what tires went on?
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Old October 15th, 2010, 07:13 PM
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Kurt shame on you. you are not saying that there was some back door deals being made rather than putting the best rubber on the road. Are you ?
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Old October 16th, 2010, 07:56 AM
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Sure! I would think there was an "official policy" as to which tires were used when (whatever that may have been). I also believe that the situation was ripe for the policy to be circumvented for various reasons (whatever they may have been).
Would be nice to know what really happened in both cases.
I also don't believe that the "best rubber" didn't figure into the final outcome regardless!
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Old November 1st, 2010, 06:47 PM
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And then there is the Goodyear Polyglas that they don't repo.
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Old November 1st, 2010, 08:04 PM
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Originally Posted by bkeese View Post
And then there is the Goodyear Polyglas that they don't repo.
Kelsey Tire shows the Goodyear Polyglas G70-14 at $220 each.

http://www.kelseytire.com/pages/preformancetires2.html
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Old November 2nd, 2010, 04:19 AM
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I knew another company repo tires, I just couldn't remember who.
Thanks
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Old January 1st, 2011, 08:00 PM
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Anyone who is needing help with the Goodyear reproduction tires, please feel free to contact me.
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Old January 2nd, 2011, 06:45 PM
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70 w-30 goodyear rlw polyglass g70-14
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Old January 19th, 2011, 09:59 PM
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70 w-30 came with Firestones.

Lee
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Old January 20th, 2011, 06:40 AM
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442's (w-30's included) were not tied to just one tire. Goodyears, Firestones, and whatever else Olds had as a performance tire supplier (Uniroyal?) were used. Just like at Chevy, Firestones and Goodyears were used on Chevelles (including the LS-6). The tires that happend to be there or if they were special ordered were what was put on the car.

Only manufacture that I now of that was tied to one brand only was MOPAR.
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Old January 20th, 2011, 06:55 AM
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sorry I meant my car came with firestones.........Lee
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Old January 20th, 2011, 07:49 AM
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Originally Posted by bkeese View Post
And then there is the Goodyear Polyglas that they don't repo.
What is it about your tire that is special? I know that they reproduce the G70-14 Polyglas RWL. Just wanting to find out.
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Old January 29th, 2011, 07:02 AM
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to joe

You mention your w-31 came with firestones. I need some original owner or original pictures to verify that the w-30s came with firestones. I ordered Firestones for my restoration but am getting some na-sayers that I am wrong even though I have pictures of my car 1 month after it was purchased with poverty caps and replaced with mag wheels. I will prepare a new post on the site to get some documentation. thanks Lee
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Old January 29th, 2011, 07:26 AM
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Since the factory literature describes the tire as being "blackwall wide oval with raised white letters".Could this mean the factory preferred the Firestone wide oval?
Would it be possible Firestone could not keep up with demand so the factory started using other brands?

Just thinking out loud here,this topic really catches my interest...bias-ply are next on my want list
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Old January 29th, 2011, 07:47 AM
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I will tell you how interesting a restoration is on an old w-30. I have already heard comments that people will think I cut corners on my restoration because the firestone reproduction tires are cheaper.....so how else did I cut corners on my restoration. Plus some insisting that a 1970 w-30 did not come with firestone tires. I am using the Firestones because the vintage dated April 1970 photos one month after the car was sold new shows firestone tires. In the pictures the poverty cap steel wheels were replaced with aluminum mags but the car still has firestones. Lee
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Old January 29th, 2011, 07:56 AM
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let me know who those guys are that are telling you that you are cutting corners and I'll ask them to fund my restoration . We all have our limits to what we can or want to do with our cars. I would love to have the Firestone Wide Ovals because I think they are the nicest looking of the original tires. But since I drive my car a decent amount in the summer and have 4 kids I prefer to have modern steel belted tires. I have even gone out of the way to find 15" bolt on SSIIs so that I can get a better ride and have a better choice of tires while looking original.

Now I have not compared the repo bias ply to radials on my car but every person I have spoken to says there is a difference and they do not drive as nice and you do risk flats and handling issues - is that true?
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Old February 3rd, 2011, 03:46 PM
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I found some original w-30s with Firestones so I am good with the nay sayers and I don't really care about the cheap out comment since I am not at all and the car will speak for itself. well, cars dont really speak do they...........

Lee
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Old February 28th, 2011, 09:05 PM
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Originally Posted by tomsw31 View Post
My W30 has the original spare, which is a Uniroyal Tigerpaw G70 X 14. They do not reproduce this tire, so I went with the Firestone Wideovals. If your car had the PK5 tire option, it could have come with either the Goodyear, Uniroyal, or Firestone, whatever tire was on hand when your car came down the line. Unless you have an original tire from your car, there is no way to know which one was on your car when it was new.

Update : I spoke to an owner of a 1970 Chevelle LS6 Convert (yes 1 of 17) with GM of Canada documentation and it stated that his car came with the Goodyears specifically. On my GM of Canada docs, my W30 states "PK5 G70X14 W/Letter Tires" and my W31 states "PK5 Tire: G70X14 White Letter".

I wonder if there are any Oldsmobiles with GM of Canada docs, that specify which tire the car came with?
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Old February 28th, 2011, 10:56 PM
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Hello, My name is Dan & I have a problem .....

1968 Hurst/Olds made it easy - all G70-14 Goodyear Polyglas "white stripe".

I've seen original Goodyear Polyglas RWL & Uniroyal Tiger Paw RWL in G70-14 on '70 442s. I haven't personally seen a '70 vintage Firestone RWL G70-14 & I'm not sure what Goodrich had in the early '70s for RWL?

To narrow the field for what is correct on car - a database of plant and assembly dates of known "survivor" type cars & tires would need to be researched/created.

ROCKET VAPOR - I'd love to see some detail pics of your Firestone G70-14.
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Old February 28th, 2011, 11:14 PM
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Update : I spoke to an owner of a 1970 Chevelle LS6 Convert (yes 1 of 17) with GM of Canada documentation and it stated that his car came with the Goodyears specifically. On my GM of Canada docs, my W30 states "PK5 G70X14 W/Letter Tires" and my W31 states "PK5 Tire: G70X14 White Letter".

I wonder if there are any Oldsmobiles with GM of Canada docs, that specify which tire the car came with?
I am familiar with one of the '70 LS6 'verts also, this car still retains it's original Uniroyal Tiger Paw F70-14 spare & vintage pics with its originals on the ground. I don't think the car companies named a "stock" tire by manufacturer so they wouldn't be held "hostage" by the tire companies (by price or being unable to supply) & they didn't need customers complaining "Why doesn't my car have Goodyear Polyglas tires?" They were able to advertise for short run specials ('69 H/O for example), but not for a full model year/multiple plant offering.

I'd also think that the beginning of the '70 model year the tire manufacturers were overwhelmed by the quantity of new for '70 sizes & variety. I'm pretty sure the Oldsmobile, Buick, & Pontiac a-bodies were the only '70 model year cars to use G70-14 tires.

Last edited by hurst68olds; February 28th, 2011 at 11:16 PM.
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Old March 31st, 2011, 07:59 AM
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Originally Posted by tomsw31 View Post
Update : I spoke to an owner of a 1970 Chevelle LS6 Convert (yes 1 of 17) with GM of Canada documentation and it stated that his car came with the Goodyears specifically. On my GM of Canada docs, my W30 states "PK5 G70X14 W/Letter Tires" and my W31 states "PK5 Tire: G70X14 White Letter".

I wonder if there are any Oldsmobiles with GM of Canada docs, that specify which tire the car came with?
Sorry to dig up an old thread.
Tom my car, like yours, came with the Uniroyal Tiger Paw G70-14 tires (original spare in my trunk) and, like yours, my GM of Canada documentation says "PK5 Tire:..." etc. with no specific mention of brand. I wish someone reproduced them but it seems like the majority of the GM musclecars had the Polyglas or Wide Ovals so there probably won't ever be enough demand to warrant a reproduction.
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Old June 18th, 2011, 06:02 PM
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My 70 W-30 which I purchased in the Spring of 78 had what I believe to be the original G70-14 Goodyear Polyglas GT spare in the trunk.
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Old June 18th, 2011, 09:11 PM
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Originally Posted by Boiler_81 View Post
My 70 W-30 which I purchased in the Spring of 78 had what I believe to be the original G70-14 Goodyear Polyglas GT spare in the trunk.
Do you still have the car & tire? Can you get the DOT # off the tire & the production week of the car?
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Old June 19th, 2011, 07:42 AM
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Still have the car but I don't have the tire.

Originally Posted by hurst68olds View Post
Do you still have the car & tire? Can you get the DOT # off the tire & the production week of the car?
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Old June 19th, 2011, 09:11 AM
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Originally Posted by Boiler_81 View Post
Still have the car but I don't have the tire.
& the production week of the car was?
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Old June 21st, 2011, 06:36 PM
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12d
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