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Tires: round or square shoulder? |
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Scratch 
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Joined: 30 July 2019 Location: Hudson, WI Status: Offline Points: 1457 |
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 Topic: Tires: round or square shoulder?Posted: 15 Aug. 2019 at 1:41pm |
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I know the obvious difference between the round or square shoulders on those old tires, but were they both options from the factory? Were they on different years? Why are there two options?
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Stev
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Posted: 15 Aug. 2019 at 1:56pm |
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The square edge tires are the earlier style. The square tires leave more of a directional mark on the ground (if that matters to you). They also work better in the mud (more bite - less uncontrollable sided slipping).
Some of the later round edge tires CC are made of a soft rubber and will hold up for 30+ year without any checkering of the rubber on a vehicle stored in a garage (if that matters).
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Stev
1946 CJ2A Trail Jeep (The Saint), 1948 CJ2A Lefty Restored |
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Scratch
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Posted: 15 Aug. 2019 at 2:21pm |
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Thanks!
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oldtime
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Posted: 15 Aug. 2019 at 4:05pm |
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If not mistaken I think the NDCC production begins in 1950 as it was used on M38's. ...
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Currently building my final F-134 powered 3B .
T98-A Rock Crawler using exclusive factory parts and Approved Special Equipment from the Willys Motors era (1953-1963) Zero aftermarket parts |
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Joe Friday
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Posted: 15 Aug. 2019 at 5:22pm |
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Correct. 6:00-16 was an NDT - Non Directional Traction
1950 Introduced the 7:00-16 Which was a Non Directional Cross Country with less traction but better flotation. (The CJ2A/3A specified 7:00-15 when they wanted flotation and more draw bar pull for agricultural uses) I don't believe there was a 6:00-16 NDCC for Jeep in the 40's |
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Scratch
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Joined: 30 July 2019 Location: Hudson, WI Status: Offline Points: 1457 |
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Posted: 15 Aug. 2019 at 5:53pm |
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What about the MB's? Specifically the 42? That would be the one I'd be putting these tires on. Anyone know what size and style off the top of their head? Might as well get period correct!
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43 GPW 93487 Blk
44 GPW 230283 OD 46 CJ2A 50100 Tan 46 CJ2A 77632 Wht 47 CJ2A 141681 Grn 48 CJ2A 156240 Red/Yel 48 CJ2A "Lefty" 181341 Red 61 CJ5 123120 Tan 03 TJ Inca Gld |
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oldtime
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Posted: 16 Aug. 2019 at 12:42am |
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MB ran 6.00 x 16" NDT's.
Goodyear was probably the most common and also had Firestone brand which are still available.
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Currently building my final F-134 powered 3B .
T98-A Rock Crawler using exclusive factory parts and Approved Special Equipment from the Willys Motors era (1953-1963) Zero aftermarket parts |
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Joe Friday
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Posted: 16 Aug. 2019 at 2:02am |
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1941-1945 Willys MB had only 6:00-16 Goodyear NDT
Goodyear had the Exclusive business till BFG on the M38 The Goodyears are distributed by KelseyTire.com. The Ford GPW had either Goodyear, Ford, or Firestone 6:00-16 NDT The Firestone are Coker.com. but available thru other places like Summit Racing |
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Ol' Unreliable
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Posted: 17 Aug. 2019 at 2:14am |
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Why does it cost $20 to round off the corners?
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There's a reason it's called Ol' Unreliable
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Joe Friday
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Posted: 17 Aug. 2019 at 2:38am |
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Well...
Neither of those tires pictured is actually the proper tread pitch count for the vintage firestone, so don't buy them for authenticity... Coker had some old molds around, or got them from the Denman auction. |
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Scratch
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Posted: 17 Aug. 2019 at 2:38pm |
I know... when just driving around will do it for free!
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43 GPW 93487 Blk
44 GPW 230283 OD 46 CJ2A 50100 Tan 46 CJ2A 77632 Wht 47 CJ2A 141681 Grn 48 CJ2A 156240 Red/Yel 48 CJ2A "Lefty" 181341 Red 61 CJ5 123120 Tan 03 TJ Inca Gld |
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Ol' Unreliable wrote: