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Old 10-09-2011, 06:21 PM   #1
Firebirdjones
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Steel Wheel Trivia

I have some 6 lug steel wheels here. All are 15" diameter.

Some are 6" wide and some are 5.5" wide.

Anyone know why or for what application? They are all date coded for 69 and 70.

I'm thinking one difference might be for a front drum brake setup? Since discs were still an option through 71.
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Old 10-10-2011, 01:37 AM   #2
70cst
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Re: Steel Wheel Trivia

Quote:
Originally Posted by Firebirdjones View Post
I have some 6 lug steel wheels here. All are 15" diameter.

Some are 6" wide and some are 5.5" wide.

Anyone know why or for what application? They are all date coded for 69 and 70.

I'm thinking one difference might be for a front drum brake setup? Since discs were still an option through 71.
I think 69-70 had drums only and from 71 onward had disc brakes.
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Old 10-10-2011, 09:21 AM   #3
viking427
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Re: Steel Wheel Trivia

Here's the Steelie breakdown for 69-70 Blazers/Jimmys (all drum brakes);

1969 Blazer (6 stud, 4wd only)
Std. 15x5.5
Opt. 15x6
Opt. 16x5
Opt. 16.5x6

1970 Blazer (6 stud)
Std. 15x5.5
Opt. 15x6
Opt. 16x5
Opt. 16.5x6 (4wd only)

1970 Jimmy (6 stud)
Std. 15x5.5
Opt. 15x6
Opt. 16x5
Opt. 16.5x6 (4wd only)

Last edited by viking427; 10-10-2011 at 09:32 AM.
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Old 10-10-2011, 11:41 AM   #4
Firebirdjones
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Re: Steel Wheel Trivia

Interesting, thanks.

I wasn't even aware of the 5.5" wide 6 lug wheels until I started messing around with these things. I had thought they were all 6". I have a mixed bag of both.
I guess I'm on the hunt for some more 6" wheels then.
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Old 10-11-2011, 12:30 PM   #5
viking427
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Re: Steel Wheel Trivia

Correction - in reviewing several SPIDs, it looks like the Optional 16" wheels for the 69/70 Blazer/Jimmy were actually 16x6 that used the 6.50" tire, not 16x5. Maybe the earlier pickup (1960-68?) 16" wheels were the narrower 5" width.


Quote:
Originally Posted by viking427 View Post
Here's the Steelie breakdown for 69-70 Blazers/Jimmys (all drum brakes);

1969 Blazer (6 stud, 4wd only)
Std. 15x5.5
Opt. 15x6
Opt. 16x5
Opt. 16.5x6

1970 Blazer (6 stud)
Std. 15x5.5
Opt. 15x6
Opt. 16x5
Opt. 16.5x6 (4wd only)

1970 Jimmy (6 stud)
Std. 15x5.5
Opt. 15x6
Opt. 16x5
Opt. 16.5x6 (4wd only)
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Old 10-11-2011, 01:50 PM   #6
Firebirdjones
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Re: Steel Wheel Trivia

I'll have to look at my SPID. I still have the original spare but that's it. It's a 15x6 so I figured that's what the truck had.
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Old 10-11-2011, 01:55 PM   #7
Firebirdjones
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Re: Steel Wheel Trivia

No mention of wheels on my SPID, just "chrome hubcaps"
It mentions tires,,,,,H78-15 highway

It does have something else interesting on the SPID that I never noticed before. I'll have to start a new post and ask about that.
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