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09-26-2008, 02:48 AM
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#1
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Senior Member
Join Date: Apr 2005
Location: Frisco, TX
Posts: 821
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I'm looking to go to a "city toad" (our current Scion xA) and a "country toad" . . . perhaps a CJ3B Jeep.
Had a CJ3B back in the '70's --- had more fun with that little 4x4 than any of the dozen or so I've ever owned!
I do recall, however, that 50 to 55 MPH was a pretty good top speed for the little critter - and a noisy one at that (gear noise). Makes me wonder if towing one at 60 to 65 MPH would present a problem.
Any thoughts?
__________________
Warren and Debbie
2012 Winnebago Itasca Navion iQ
2010 MINI Cooper Clubman S
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09-26-2008, 02:48 AM
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#2
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Senior Member
Join Date: Apr 2005
Location: Frisco, TX
Posts: 821
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I'm looking to go to a "city toad" (our current Scion xA) and a "country toad" . . . perhaps a CJ3B Jeep.
Had a CJ3B back in the '70's --- had more fun with that little 4x4 than any of the dozen or so I've ever owned!
I do recall, however, that 50 to 55 MPH was a pretty good top speed for the little critter - and a noisy one at that (gear noise). Makes me wonder if towing one at 60 to 65 MPH would present a problem.
Any thoughts?
__________________
Warren and Debbie
2012 Winnebago Itasca Navion iQ
2010 MINI Cooper Clubman S
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09-26-2008, 07:37 AM
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#3
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Senior Member
Alpine Owners Club
Join Date: Jun 2003
Location: Ontario, CA USA
Posts: 739
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Hello Warren & Debbie:
If you want to tow an older jeep CJ, it all depends on the transfer case. The older CJ's used a model 18 which can be towed in neutral for as long has it has oil in it with no restrictions. The Newer jeeps with a model 20 can be towed in neutral with the front hubs in gauged to keep the transfer case oiled. The CJ's with a Dana model 300 can not be towed without disconnecting the rear drive shaft.
I believe the Dana Model 300 came out in the late 70's. The Model 18 was used into the 60's and the model 20 was used in the 60.s and 70's. My 1960 CJ-5 came with a model 18 and my 1975 CJ-6 came with a model 20.
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09-26-2008, 07:57 AM
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#4
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Senior Member
Join Date: Feb 2001
Location: Texas hillcountry USA
Posts: 499
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I would not recommend towing a 3B at highway speeds. Axles would still be spinning even though transfer case is in neutral. Those old axles were not built for 70 MPH. Friend of mine has a restored 3B and 50 is his top speed and it doesn't like that real well. I would trailer it. Then use it as a run-about at your destination going no faster than 40-45. Or you could get a 97-06 Wrangler for a great toad. Probably the oldest Jeep that could be safely a highway speed toad would be a CJ5.
__________________
Robert & Nancy with "Murphy the EOG"
KE5NWT
02 Holiday Rambler 32SKS fiver, 02 F350
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10-12-2008, 04:16 AM
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#5
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Member
Join Date: Sep 2008
Location: Corpus Christi, Texas
Posts: 41
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Most of the "older" jeeps (2A, 3A, 3B) had 5:38 to 1 ring and pinion sets. The engines in those vehicles were long stroke four cylinders with little bottom end, thus the requirement for a high gear ratio. With this gear ratio, the engine would run out of RPM at about 50 to 55. Most of the gear whine that you heard actually came from the transmissions which were spinning as fast as they could. By placing the transfer case in neutral you eliminate the transmission and engine from turning. The axles really don't care how fast they are spinning, and the ring and pinion sets (front and rear)are not carrying a load. I have raced Jeeps with 5:38 to 1 rear gears at over 120 mph and they hold up fine. Just be sure to tow the Jeep with the transfer case in neutral.
Happy Off Roading
__________________
David & Kacy Alexander
Corpus Christi, TX
2003 Alpine 40' FDS
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10-12-2008, 02:34 PM
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#6
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Senior Member
Workhorse Chassis Owner
Join Date: Dec 2003
Location: La Crescenta, CA USA
Posts: 247
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If you really want to do it right. Replace the rear axles with the full floating type. Then install Warn (or equal) locking hubs on the rear wheels.
Wish I could do the same.
George
__________________
George & Karen Wharton
2004 Allegro 30DA W-20
2000 Jimmy toad
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