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Unread 04-02-2013, 01:07 PM   #1
CBinDC
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Want to pull a trailer.....

I'm thinking about trading in my pickup for a sedan. I'd love to keep it but there more reasons to get rid of it and get a smaller car. I often use my truck to haul stuff (mostly brush and junk) to the dump. My YJ currently has 3.07 gears. What size gearing do I need to haul a small trailer?

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Unread 04-02-2013, 01:14 PM   #2
roadyrob
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I have the 4.2 like you. I've pulled a motorcycle trailer (about 1K total) no problems but I'm only running 31" tires. with 33" tires 4.10 gears will put you close to stock pulling power and you should do fine.
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Unread 04-02-2013, 01:16 PM   #3
CBinDC
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I also have a set of 31s. What gears do you have?
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Unread 04-02-2013, 01:47 PM   #4
E_ROCK
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Applies to oranges....

But I have a 4.0L with 4.88 with 37" tires. I don't have too many problems except over mountain passes.

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Unread 04-02-2013, 01:48 PM   #5
roadyrob
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3.07 gears. actually it pulled easy but didn't stop to good, had to leave plenty of stopping room.
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Unread 04-02-2013, 01:55 PM   #6
CBinDC
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Why doesn't it stop too good? Does that have to do with the gears or the fact that the trailer doesn't have brakes?
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Unread 04-02-2013, 01:58 PM   #7
flea1987
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jeep lacks the weight to stop a heavy load
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Unread 04-02-2013, 03:42 PM   #8
CBinDC
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Gotcha. Makes sense.
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Unread 04-02-2013, 04:02 PM   #9
zeus87gn
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With 33" tires, 3.73 gears are the best overall setup for the 4.2
I have 4.10's but they are a litttle short
I've had no problems pulling a small trailer - I was 3.55 geared and it took more gas pedal then
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Unread 04-02-2013, 04:02 PM   #10
Xpress
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Jeeps lack great brakes as is. They work fine for what we do with them, but add in 1-2000 extra lb's of weight and suddenly it gets a lot harder to stop. If you really want to go all out with making it a tow vehicle then a stronger rear end is a must with stronger, vented brakes all around. But that's overkill.

Keep from riding the brakes and work your engine brake as well. Plan out your braking, they will stop, just not in a hurry. Getting going shouldn't be too big of an issue, it's the stopping part that takes more finesse.
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Unread 04-02-2013, 04:04 PM   #11
Rproject
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I pull a 4x8 utility trailer with mine all the time. No problems. Have had it loaded with 1,000-1,500 lbs of schtuff before. 4.2 - 3.07 gearing - 31's. Used to pull the same trailer with a '95 Yj 2.5 - 4:10 - 33's.

Yeah, give more room for stopping.
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Unread 04-02-2013, 05:55 PM   #12
pasinbuy
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The two items that make our Yjs suck when pulling a trailer are,

One the brakes are small in size and cannot handle much load. I pulled a 6x12 empty cargo trailer home and my Yj had a hard time stopping. On wet roads forget it.

Two our rear frame is to thin and the hitch may rip out from the frame. I added 1/4 steel to the rear end of my frame. Take a look at your frame rear to see what I am talking about. Very thin!
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Unread 04-02-2013, 07:52 PM   #13
CBinDC
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Quote:
Originally Posted by pasinbuy
The two items that make our Yjs suck when pulling a trailer are,

One the brakes are small in size and cannot handle much load. I pulled a 6x12 empty cargo trailer home and my Yj had a hard time stopping. On wet roads forget it.

Two our rear frame is to thin and the hitch may rip out from the frame. I added 1/4 steel to the rear end of my frame. Take a look at your frame rear to see what I am talking about. Very thin!
Would you mind taking a picture of what you did to the rear frame?
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Unread 04-02-2013, 07:59 PM   #14
Louie4
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I've made a couple trips from Atlanta to Knoxville towing a 5 x 8 U-haul trailer that was loaded down. It wasn't that great but it saved me a lot of money doing it that way. My main issue was keeping the engine cool and making sure I maintained my lane when going through Downtown Atlanta. I also run 4.10's with 33's and a 4.0L.

just to note, U-haul won't let you rent a trailer if you have a softop. Ask me how I know.

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Unread 04-02-2013, 08:10 PM   #15
CBinDC
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Quote:
Originally Posted by zeus87gn
With 33" tires, 3.73 gears are the best overall setup for the 4.2
I have 4.10's but they are a litttle short for best overall operation
I've had no problems pulling a small trailer - I was 3.55 geared and it took more gas pedal then
What are the best gears if you're running 31s w/ 4.2L?
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