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Tire size

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Marten View Drop Down
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    Posted: 15 Oct. 2021 at 3:43pm
After owning 5 Willys wagons I have now purchased my first 1946 cj2a. The rig has 32 11.5 r15 snow tires. I was wondering what everyone else is running on their jeeps. I still have plenty of tread , but when I get her up to around 50 mph it seems a little squirrely. One of the PO put a v6 in it, unknown make, Power steering... I believe the rear and front axels are Dana 44.
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Oldpappy View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Oldpappy Quote  Post ReplyReply Direct Link To This Post Posted: 15 Oct. 2021 at 4:03pm
50 MPH is pushing the limit on a CJ2A, and I suspect it getting a little "squirrely" is something other than the tires.

I run 6.50 X 16 NDT tires on my CJ2A, and I have never had it over 40 MPH, and that is faster than I want to go in it. 

If you want to go fast you need something besides a CJ2A.
If you can't get there in a Jeep you don't need to be there!
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oldtime View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote oldtime Quote  Post ReplyReply Direct Link To This Post Posted: 15 Oct. 2021 at 4:05pm
Squirrely could be tires, wheels, wheel bearings, axle castor, toe in, tie rod ends, tie rod geometry, steering box installation and or column linkages.
Try a set of your wagon wheels/ tires on it.
Wheels can be checked for runout by spinning them on a spindle.


Edited by oldtime - 15 Oct. 2021 at 4:06pm
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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Oldpappy View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Oldpappy Quote  Post ReplyReply Direct Link To This Post Posted: 15 Oct. 2021 at 4:07pm
With the bolts in the center of the valve covers I don't believe that is a Buick V6. May be a Chevy 4.3L, but I am not real familiar with them.
If you can't get there in a Jeep you don't need to be there!
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Marten View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Marten Quote  Post ReplyReply Direct Link To This Post Posted: 15 Oct. 2021 at 4:13pm
Tie rod and ends appear to be new, steering column is in good order, tow in looks good I checked caster and it looks ok. Yes 50mph may be pushing it. PO also put automatic tranny in it and it has an over drive.
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oldtime View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote oldtime Quote  Post ReplyReply Direct Link To This Post Posted: 15 Oct. 2021 at 4:28pm
Lift front tires off ground then rock top and bottom of tire to check wheel bearings and ball joints. Should be maybe 1/8” of play when firmly grasped and rocked.
 If steering box connect rod angle is bad you will get bump steer.


Edited by oldtime - 15 Oct. 2021 at 4:34pm
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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Marten View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Marten Quote  Post ReplyReply Direct Link To This Post Posted: 15 Oct. 2021 at 7:56pm
Yep , someone else said Chevy 4.3. Craig's list purchase...took a chance, so far so good. The engine does have an electronic brain....not to happy about that...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bill2A Quote  Post ReplyReply Direct Link To This Post Posted: 15 Oct. 2021 at 8:09pm
Being squirrelly could be from a lot of slack in one place or a combination of just a little slack in each of a bunch of places.
In any event, a 4.3 and overdrive can get it moving faster than is really safe.
Take your time even after you find the squirrel. Wink
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Mark W. View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Mark W. Quote  Post ReplyReply Direct Link To This Post Posted: 15 Oct. 2021 at 9:54pm
I run 235/75R 15's on my CJ-2A and have no trouble running down the freeway at 60mph+ I can let go of the wheel and it tracks rock steady. But then I have Saginaw manual steering on my 48. Oh and a 134L  5.38 gears and a 30% OD
Chug A Lug
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1949 3A W/S
1957 CJ5 Frame Modified
Late 50's 134L 9.25"clutch T90A D18 (1.25") D44/30 flanged E-Locker D25 5.38 Since 1962
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Oldpappy Quote  Post ReplyReply Direct Link To This Post Posted: 15 Oct. 2021 at 10:32pm
No way I want to go 60mph+ in a flat fender Jeep, not that I haven't done it, I did have a M38 with a 225 V6 and overdrive that would run freeway speed, but that was when I was young and stupid enough to think nothing of it. 

I flipped one over once when I was going too fast, and that was enough thrill to last me a while.
If you can't get there in a Jeep you don't need to be there!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mark W. Quote  Post ReplyReply Direct Link To This Post Posted: 16 Oct. 2021 at 8:07am
I'm not suggesting anyone drive outside their comfort range or the ability of their vehicle. But in my case I built CHUG to do exactly what its capable of. So
Chug A Lug
1948 2A Body Customized
1949 3A W/S
1957 CJ5 Frame Modified
Late 50's 134L 9.25"clutch T90A D18 (1.25") D44/30 flanged E-Locker D25 5.38 Since 1962
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Post Options Post Options   Thanks (0) Thanks(0)   Quote flatfender47 Quote  Post ReplyReply Direct Link To This Post Posted: 16 Oct. 2021 at 10:55am
Originally posted by Oldpappy Oldpappy wrote:

50 MPH is pushing the limit on a CJ2A, and I suspect it getting a little "squirrely" is something other than the tires.

If you want to go fast you need something besides a CJ2A.

Disapprove  Thumbs Down
 


1947 CJ2A 225V6 SM420 D30 PLok/D44 D/Locker Warn OD 5:38s
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otto View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote otto Quote  Post ReplyReply Direct Link To This Post Posted: 16 Oct. 2021 at 11:18am
Going by the first photo posted showing tire tread, it looks like the fender bolts are missing. It might be a good idea to go over the rest of the vehicle and check for other missing or loose bolts!
47 CJ2A w/fuel injected boat engine
48 CJ2A
64 Ford Econoline Travelwagon
If you can't get there in a Jeep, get a motorcycle!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rus Curtis Quote  Post ReplyReply Direct Link To This Post Posted: 16 Oct. 2021 at 11:25am
Originally posted by otto otto wrote:

Going by the first photo posted showing tire tread, it looks like the fender bolts are missing. It might be a good idea to go over the rest of the vehicle and check for other missing or loose bolts!

I've seen that more than once.  I suspect fitment issues, i.e. replacement body, extensive body work, etc. where the holes won't line up.  When done, I would guess the assumption is it won't matter since the tub and radiator guard will hold the fenders in place.
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Marten View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Marten Quote  Post ReplyReply Direct Link To This Post Posted: 16 Oct. 2021 at 9:00pm
Yep I saw the missing bolts also, he bolted it on in another spot...go figure. Yes , I have been tightening and replacing bolts as needed. Bearings are good and brakes inspected and adjusted...fluids etc.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote drm101 Quote  Post ReplyReply Direct Link To This Post Posted: 17 Oct. 2021 at 9:02am
My father-in-law leaves those bolts out on his '46. He says they caused his fenders to crack, so he never uses them. Maybe a previous owner thought similarly. We run 6.5x16 Super Traxions on the stock rims. I've hit 55 mph with ours (Stock L134 and driveline), but that's flat out as fast as it will go. Feels like 100, but it also feels smooth and solid at 55. I love driving it fast. It's as fun as any sports car I've been in, and I used to drive Vipers for a living. I also like going too fast around the corners on dirt roads. It's hilarious to me that they are loose in the corners on dirt while every other old car pushes. 

Edited by drm101 - 17 Oct. 2021 at 9:15am
Dean
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The less the Power the More the Force
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Marten Quote  Post ReplyReply Direct Link To This Post Posted: 17 Oct. 2021 at 9:12am
Wow, now I went ahead and replaced those missing bolts last night. Did he say where the fenders cracked at?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote drm101 Quote  Post ReplyReply Direct Link To This Post Posted: 17 Oct. 2021 at 9:17am
The top corners. He's the only person I know that does this. Most folks don't have an issue and I suspect you won't either. Nice find, by the way!

Dean
'47 CJ2A "Mud Hen"
The less the Power the More the Force
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