Calgary Jeep Association
4x4 Related Groups => Tech Talk => Topic started by: Canuck Bob on March 29, 2009, 06:02:09 PM
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I find I just can't let the thought of 33's go. I try and I try but, .... well most of you know my dilemma.
I can afford the 33's as long as a regear and SYE upgrades aren't necessary.
The SYE is not a problem with small BB and BL. However the gearing thing is still a concern
For those who jumped to 33's with 3.73's please educate me. I have no interest in the implications for wheeling. My only concern is the real highway performance with 10.5 wide rubber.
On Hwy 2 can I use 5th at 120 klicks, downshifting for grades is no issue, I drive to Grande Cache in 4th most of the way. I don't pay for my gas, company does. My cruising speeds are 120 on 4 lanes 110 on 2 lanes.
On all the forums it seems the wheelers are very negative of the combo. While daily drivers don't see it as a big issue.
I'm buying rubber this week and need to put this to rest. thanks for all input.
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I'm running 12.5X35's with 3.54 ratio with a 4.2L I6engine in my '88 YJ. I have no problem doing 120km on hiway ( 5th has become a gear that collects dust though) 110km @2300 rpm in 4th(110km@1400 in 5th) and can go wheeling with no problem either, so 33's and 3.73 should not be a big issue, your speedo will be showing slower than you are traveling but your rpm's should be similar to mine mine. Hope this helps good luck
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Yes it helps thank you.
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it'll be tolerable but not great. a 33x10.5" tire should be ok tho
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im running 33's with 4.10 gears 5 speed and i cant get into 5th gear unless im on a perfectly flat highway with no wind .
my brothers running 33's with 3.73 gears but he had a 6 speed and doesnt have a problem
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im running 33's with 4.10 gears 5 speed and i cant get into 5th gear unless im on a perfectly flat highway with no wind .
my brothers running 33's with 3.73 gears but he had a 6 speed and doesnt have a problem
Is your rig a lot heavier from stock? Mine is a light rig, hardtop in the winter but usually no back seat and no addons.
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no its stock hard top , back seat, small tool box 10lbs max
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Interesting! I carry around 50lbs. of gear when I travel. Suitcase, recovery stuff, some tools, etc..
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well come to think about it i carry the little tool box high lifter jack and tow rope .. so max 50 lbs
but ya i cant seem to get over 110 km . so no i drive in 4th at 95 - 100 km which is about 108 km with the tire difference
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I'm currently running 3.73 and 33" X 12.5" tires and 5th gear is completely gutless on the highway...the slightest little grade or headwind and I'm shifting down to 4th. I bought 4.88 gears that are going in my jeep in about 2 weeks... ;D can't wait!
RACKMAN
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Do you have the 4 or 6 cylinder Jeff
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Thanks everyone. I do not want to be robbed of my rigs snappy performance. I'll shelve the 33's idea :'( and get a nice set of 31 MT's. I am leaning heavy to the Firestone Destination MT's.
I can tell now that the 33 / 3.73 combo will make me very unhappy when I carry the family for family outings.
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Do you have the 4 or 6 cylinder Jeff
6 cyl. and a strong one at that.
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Thanks everyone. I do not want to be robbed of my rigs snappy performance. I'll shelve the 33's idea :'( and get a nice set of 31 MT's. I am leaning heavy to the Firestone Destination MT's.
I can tell now that the 33 / 3.73 combo will make me very unhappy when I carry the family for family outings.
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have you considered 32x11.5 they work well for me for daily driving and wheeling. i have 3.55 gears, 4.0 and a 5 speed and still get it up for passing on the highway.
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The weight of the tire will be almost as important as the size for your application.
Most likely, the best tire for you would be a 32 x 11.50 or a 33 x 10.50 BFG all terrain. They are exceptionally light weight, have good road manners, and are agressive enough for you ventures onto leases and what not.
Those are about the only two size and tire types I would be looking at for you.
Due to the lower first gear, and lower overdrive, either of those tires will be very manageable on the highway.
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The weight of the tire will be almost as important as the size for your application.
Most likely, the best tire for you would be a 32 x 11.50 or a 33 x 10.50 BFG all terrain. They are exceptionally light weight, have good road manners, and are agressive enough for you ventures onto leases and what not.
Those are about the only two size and tire types I would be looking at for you.
Due to the lower first gear, and lower overdrive, either of those tires will be very manageable on the highway.
Great advice but I want to use my Alcoa rims so wider than 10.5 is out. Also I really need mud tires for my work. I have a set of nice GY silent Armor AT's and love them except their useless in mud.
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i had 32 bfg's ats before the muds on stock 8"gamblers. needed to turn out the steering stop a wee bit for clearance. i used them on muddy trails at 13 psi and was fine about 95% of the time. the other 5% needed a tug or winch
hth
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Great advice but I want to use my Alcoa rims so wider than 10.5 is out. Also I really need mud tires for my work. I have a set of nice GY silent Armor AT's and love them except their useless in mud.
The BFG KO AT is a much different beast then something as mild as a silent armor. They are cross in aggresivenes between a full mt and a street at.
For what you do, they are more then enough tire in the mud.
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i run BFG AT 33x10.50.
The tire is awesome on road in any condition. i am safe in any amount or type of snow.
i have not tried offroad but have been offroad with jeepers that run them. They do fine. They do better than GY MTR's in slimy mud.
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Do you have the 4 or 6 cylinder Jeff
inline 6 its great in the bush but the high way it sucks
my 5th is barely used but im blamming that on the 33/12.5R15 boggers there very heavy .. and they measure like 34.5/13R15
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inline 6 its great in the bush but the high way it sucks
my 5th is barely used but im blamming that on the 33/12.5R15 boggers there very heavy .. and they measure like 34.5/13R15
Not to slander the I6 (because I think it's an incredible engine), but....
Dude, with those boggers on, I'm surpised that you can get yer jeep outta second gear ;D
Them some big meats for a stock powertrain.
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Not to slander the I6 (because I think it's an incredible engine), but....
Dude, with those boggers on, I'm surpised that you can get yer jeep outta second gear ;D
Them some big meats for a stock powertrain.
ya 1st 2md 3rd AND 4th work well but 5th sucks just doenst have enough power
and the power train is ok with the boggers just got to know how to drive it .. :) :) :)
but ill upgrade as i break things ;D ;D
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ya 1st 2md 3rd AND 4th work well but 5th sucks just doenst have enough power
and the power train is ok with the boggers just got to know how to drive it .. :) :) :)
but ill upgrade as i break things ;D ;D
True dat. Knowing how to work winthin your engine's real powerband makes a big difference.
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ya . look how far i got throught the snow before you had to winch me out .... and buddy with V8 had to take a few runs a at it
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ya . look how far i got throught the snow before you had to winch me out .... and buddy with V8 had to take a few runs a at it
Yup. Those boggers sure can chew.
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Bought Firestone Destination MTs 31x10.5x15. Thanks all the advice