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Old 03-21-2006, 05:54 PM   #1
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Automatic or Manual

I had a 1999 Jeep Wrangler Sport with a manual transmission. I sold it in 2002 which I have since regretted. I am now looking to purchase a new Jeep Wrangler 65th Anniversary addition. My big issue is whether I should get the manual or automatic transmission. I live in Phoenix and traffic is becoming worse. I am concerned I will not enjoy the 6 speed as I once did because of all the time spent in traffic. Accordingly, I am thinking about an automatic transmission. I was also talking to a sales rep last night and he said that 75% of Jeeps sold from this dealership were automatic. I plan on having this Jeep for ever so I want to make the right decision. I test drove the manual and automatic - I like them both and I am indecisive. Any thoughts would be greatly appreciated. Thanks in advance.

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Old 03-21-2006, 06:13 PM   #2
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well i have a manual trans in a 97, and i drive it evey day. i like it over the auto ford bronco even in the heavy traffic due to road consruction, i dont know how to explain it except the fact that you can be in control of the power you put out, and in my auto you let off the brake and you go foward and sometimes sitting in traffic for 30 mins makes my leg tired, but if the surface is flat let off the brake and you just sit there, point in case my opinion i like manual over auto.

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Old 03-21-2006, 06:37 PM   #3
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I live in Phoenix also and I feel your pain boss. When I bought my 99 it was the first automatic I owned and I love it (except I have busted 2 trannies thru no fault of the tranny). I have heard bad things and good things about the auto that is in jeeps now. But I haven't heard a bad thing at all about the 6 speed. I think it just boils down to preference. Myself I love the auto to rock crawl in.
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Old 04-01-2006, 09:30 AM   #4
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I've recently bought a manual last month and now i'm driving a rental. I would checked with NHTSA web sites.

http://www-odi.nhtsa.dot.gov/cars/pr...in/results.cfm
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Old 04-01-2006, 10:00 AM   #5
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Quote:
Originally Posted by uboat27
I've recently bought a manual last month and now i'm driving a rental. I would checked with NHTSA web sites.

http://www-odi.nhtsa.dot.gov/cars/pr...in/results.cfm
Thanks for the link.

I only found two issues (the same) with the 6 speed. I'll have to keep an eye on mine.
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Old 04-01-2006, 09:13 PM   #6
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I recently got rid of my 2002 X 6 speed for a 2006 Sport Auto...
I live in Cincinnati with Lots of traffic.I really like the Auto.It makes city driving so much easier,and tolerable.And it still kicks ass offroad.Welcome back to the Jeep community by the way!
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Old 03-19-2010, 11:31 AM   #7
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All the input regarding manual versus automatic transmissions are good.

I would add the following:

Clutch versus torque converter. Clutch is a direct coupling between motor and transmission. This is advantages for downhill work. The direct coupling also gives a little better fuel millage. The down side to the clutch is when a lot of start stop driving is done the clutch will get hot. When hill climbing and feathering is needed the clutch will get hot and can fail under extreme conditions. Think of the cluth as a break pad holding the motor torque to the transmission.

The torque converter is a hydraulic fluid coupling which provides smooth coupling between motor and transmission by means of hydraulic shearing of the fluid. This sheering accounts for the fuel milage loss. A second item is the heat caused by heat sheering. When doing hill climbing and a lot of start stopping the torque converter fluid heats up. If this heat is not removed transmission failure occurs.

Heat in the automatic transmission fluid can be removed using coolers. The heat generated in the clutch is more difficult to remove under continual clutch application. The manual clutch relies on the heat sinking properties of the flywheel and pressure plate for its cooling. This means that if you heat up the clutch and can leave it engadged (foot off the clutch) for a while the heat will be drawn out of the clutch plate.

Now we get to the automatic transmission versus the manual. When looking at the gear tooth contact between the gears on a manual transmission you will notice that on the transfere of power there is only a gear and a half tooth contact between gears. This is a week point for manual transmissions. In Automatic transmissions a planetary gear system is used alowing three sets of gears transfereing torque at all times. This allows for significant tooth contact between gears. This is why drag cars use automatic transmissions.

I prefere automatic for strength and manual for fun.
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Old 03-19-2010, 12:55 PM   #8
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AUTOS SUCK TO FIX $$$$$$
CLUTCH IS CHEAP AND RELIABLE
more gas mileage =stick
more control =stick
girly= auto
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Old 03-19-2010, 01:13 PM   #9
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My '97 Wrangler TJ came with a 5-speed & I put approx. 170,000 miles on it like that. Then, two years ago, my rock crawling needs got to me & I converted it to an automatic. Hands down, together with my lockers, converting my TJ to an automatic was the best mod I've done to my TJ. Not only is it, of course, far better in the heavy traffic I drive, the automatic was a night and day improvement on the 5+ rated trails I enjoy. I first learned to drive a manual transmission in around 1963 so I can drive a stick with the best of 'em but I'll never go back to another manual transmission unless I bought something like a Porsche or other sports car where a stick is the way to go.

Pretty much all of the hardcore offroad competitors switched to automatics years ago due to the 2-3X better low-end torque an automatic gives, not to mention the better low-speed control given when crawling over tough obstacles. I had a minor part in helping to build a tube rig for Becca & Dustin Webster last year's King of the Hammers desert race & rock crawl championship and it too had an automatic (an AW4 out of a Cherokee).

One last comment... 3 years in a row on a notoriously tough desert rock crawling trail called Pumpkin Eater when I was still running my 5-speed manual with 4.88 gearing and 35" MT/T tires, I had to winch myself up three steep obstacles. Each one, every year... no way could I make it up on my own. Then with no other modifications other than having converted to the automatic transmission, my TJ scooted up all three obstacles without even a hint of a problem. I was astounded. Why? The greater low-end torque (up to 2-3X) created by the automatic's torque converter.

Go automatic, you won't regret it. My Jeep was stolen two weeks ago today & if I don't get it back, I will make darned sure my replacement TJ has an automatic transmission this time. I don't want to have to go through another transmission conversion.
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Old 03-19-2010, 03:10 PM   #10
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Quote:
Originally Posted by ANDYMAN View Post
AUTOS SUCK TO FIX $$$$$$
CLUTCH IS CHEAP AND RELIABLE
more gas mileage =stick
more control =stick
girly= auto
Seriously?

Quote:
Originally Posted by Jerry Bransford View Post
My '97 Wrangler TJ came with a 5-speed & I put approx. 170,000 miles on it like that. Then, two years ago, my rock crawling needs got to me & I converted it to an automatic. Hands down, together with my lockers, converting my TJ to an automatic was the best mod I've done to my TJ. Not only is it, of course, far better in the heavy traffic I drive, the automatic was a night and day improvement on the 5+ rated trails I enjoy. I first learned to drive a manual transmission in around 1963 so I can drive a stick with the best of 'em but I'll never go back to another manual transmission unless I bought something like a Porsche or other sports car where a stick is the way to go.

Pretty much all of the hardcore offroad competitors switched to automatics years ago due to the 2-3X better low-end torque an automatic gives, not to mention the better low-speed control given when crawling over tough obstacles. I had a minor part in helping to build a tube rig for Becca & Dustin Webster last year's King of the Hammers desert race & rock crawl championship and it too had an automatic (an AW4 out of a Cherokee).

One last comment... 3 years in a row on a notoriously tough desert rock crawling trail called Pumpkin Eater when I was still running my 5-speed manual with 4.88 gearing and 35" MT/T tires, I had to winch myself up three steep obstacles. Each one, every year... no way could I make it up on my own. Then with no other modifications other than having converted to the automatic transmission, my TJ scooted up all three obstacles without even a hint of a problem. I was astounded. Why? The greater low-end torque (up to 2-3X) created by the automatic's torque converter.

Go automatic, you won't regret it. My Jeep was stolen two weeks ago today & if I don't get it back, I will make darned sure my replacement TJ has an automatic transmission this time. I don't want to have to go through another transmission conversion.
I'm hoping you get your Jeep back Jerry. And I'm hoping I get to wheel with you again sometime soon.
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Old 03-19-2010, 03:28 PM   #11
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Auto: easier to send text messages, smoke and eat while you drive.

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