comanche13 Posted January 7, 2009 Share Posted January 7, 2009 its going to be my DD and also my 4x4 I'm going to put 33's on it and a tnt lift kit 5.5 would you recomend 3.73 or 4.11 with the facts ive told you it will see alot of highway also for i ive out in the boon's up here is mostly mud and clay and some sand in the summer with ons of snow in the winter Link to comment Share on other sites More sharing options...
BLHTAZ Posted January 7, 2009 Share Posted January 7, 2009 With 33's and a 4.0L engine...I would run 4.10 With 33's and a 2.5L engine...I would run 4.56 Link to comment Share on other sites More sharing options...
comanche13 Posted January 7, 2009 Author Share Posted January 7, 2009 i have the 4l so 3.73 arent a good gear to run with 33's? Link to comment Share on other sites More sharing options...
BLHTAZ Posted January 7, 2009 Share Posted January 7, 2009 You could do it, but it's going to lack power and fuel economy will not be optimum. BTW...you posted this same topic 4 times. You should go delete the other three before someone starts replying in them too. ;) Link to comment Share on other sites More sharing options...
comanche13 Posted January 7, 2009 Author Share Posted January 7, 2009 so with 4.11 i heard you red line alot unless your in 5th gear with 33's also i heard the 3.73 give you alittle more top end when your driving Link to comment Share on other sites More sharing options...
BLHTAZ Posted January 7, 2009 Share Posted January 7, 2009 Don't know where you got that, but it's absolutely not true. The only way you red line a lot with 4.10 gears & 33's is if you run with your foot on the floor constantly. Here is a chart to give you an idea... Sorry it's not perfectly clear, but you can read it ;) 3.73 will allow you to wind out further if you are racing, but they will suck you acceleration power away and your MPG. Link to comment Share on other sites More sharing options...
shelbyluvv Posted January 7, 2009 Share Posted January 7, 2009 Is the truck an auto or a stick? If it is a stick I would go with 4:10s or 4:56s Auto without a doubt 4:56s Link to comment Share on other sites More sharing options...
comanche13 Posted January 7, 2009 Author Share Posted January 7, 2009 are 4.27 acually a gear? or i guess 4.11 will be good enough then all i need to do is regear the front Link to comment Share on other sites More sharing options...
comanche13 Posted January 7, 2009 Author Share Posted January 7, 2009 i think the 8.8 that I'm looing at has 3.73 and they want 650 thats the cheapest i can get it Link to comment Share on other sites More sharing options...
BLHTAZ Posted January 7, 2009 Share Posted January 7, 2009 4.27 may be a gear, but it's not an available option for our trucks. I agree on the tranny difference too... 4.10 for 5 spd & 4.56 for auto with a 4.0L engine. Didn't think about that option ;) Link to comment Share on other sites More sharing options...
BLHTAZ Posted January 7, 2009 Share Posted January 7, 2009 i think the 8.8 that I'm looing at has 3.73 and they want 650 thats the cheapest i can get itWOW!!! :eek: You could buy 4 of them down here for that price... :nuts: :shake: Link to comment Share on other sites More sharing options...
comanche13 Posted January 7, 2009 Author Share Posted January 7, 2009 some people want 1500 i wonder how much it be to get on shipped from the states... can anyone help me price some out across canada and the usa Link to comment Share on other sites More sharing options...
shelbyluvv Posted January 7, 2009 Share Posted January 7, 2009 http://www.car-part.com Link to comment Share on other sites More sharing options...
Eagle Posted January 8, 2009 Share Posted January 8, 2009 i have the 4l so 3.73 arent a good gear to run with 33's? 3.73s are the right gear for 30" tires. 4.10s for 31s 4.56 for 33s 4.88 for 35s or larger (and 4.88s aren't horrible with 33s) Link to comment Share on other sites More sharing options...
Darren Posted January 8, 2009 Share Posted January 8, 2009 manual i'd go 4.10 auto 4.56 Link to comment Share on other sites More sharing options...
JeepcoMJ Posted January 8, 2009 Share Posted January 8, 2009 I completely disagree with auto suggested at 4.56's for a DD. for a moderately daily-driven MJ that DOESN'T see much time on the interstate or at speeds in excess of 65mph, sure. but I run 4.10's and 33's with an extremely clean and well built 4.0 H.O. that's almost brand new yet and an aw-4 automatic. my RPM's at 70 are 2750 and 3000 to 3500 betwen 75 and 85. no, I don't typically run faster than 75 but sometimes you do need to keep up with traffic. 3.73's would be acceptable to keep it in it's power-band at speeds of 60+ mph. so, what's your typical "DD" drive? answer that, and we can give you some more complete answers to gear you to fit your driving style. -Pat Link to comment Share on other sites More sharing options...
Eagle Posted January 8, 2009 Share Posted January 8, 2009 I completely disagree with auto suggested at 4.56's for a DD. for a moderately daily-driven MJ that DOESN'T see much time on the interstate or at speeds in excess of 65mph, sure. but I run 4.10's and 33's with an extremely clean and well built 4.0 H.O. that's almost brand new yet and an aw-4 automatic. my RPM's at 70 are 2750 and 3000 to 3500 betwen 75 and 85. no, I don't typically run faster than 75 but sometimes you do need to keep up with traffic. 3.73's would be acceptable to keep it in it's power-band at speeds of 60+ mph. so, what's your typical "DD" drive? answer that, and we can give you some more complete answers to gear you to fit your driving style. -Pat Either you're not getting overdrive or your torque converter isn't locking up. Or you have the wrong speedo gear. With 4.10 gears and 33" tires, the RPMs at 70 MPH in overdrive should be about 2200. With 4.56 gears it would be 2450, and with 4.88s it would be 2600. Which is nothing for that engine. Don't forget, that's the way the engine was originally designed. Most cars didn't have overdrive in 1964, when the original 232 (3.8L) version of that engine was introduced. I had a 1966 Rambler American with a three-speed manual. The gearing with stock tires worked out to 24 MPH per 1000 RPM, which meant that 60 MPH was 2500 RPM exactly, and 3000 RPM was a 72 MPH cruise. I sold mine long before it got tired, but my brother's 70 Gremlin with the same gearing was at 318,000 miles when we last got any feedback on it. Link to comment Share on other sites More sharing options...
JeepcoMJ Posted January 8, 2009 Share Posted January 8, 2009 4 shifts = 4 gears. of course, it may be entirely possible that I don't know how to work the torque converter lockup switch which was already installed in the harness :hmm: :nuts: Link to comment Share on other sites More sharing options...
HOrnbrod Posted January 8, 2009 Share Posted January 8, 2009 4 shifts = 4 gears. of course, it may be entirely possible that I don't know how to work the torque converter lockup switch which was already installed in the harness :hmm: :nuts: IF the RPMs you report are correct your AW4 is never seeing O/D. And if this is a D/D you don't need a torque converter lockup switch. This switch is not a factory "installed in the harness" option in the HO harness; it's an add-on. Link to comment Share on other sites More sharing options...
JeepcoMJ Posted January 8, 2009 Share Posted January 8, 2009 4 shifts = 4 gears. of course, it may be entirely possible that I don't know how to work the torque converter lockup switch which was already installed in the harness :hmm: :nuts: IF the RPMs you report are correct your AW4 is never seeing O/D. And if this is a D/D you don't need a torque converter lockup switch. This switch is not a factory "installed in the harness" option in the HO harness; it's an add-on. I'm well aware of the fact that it's an add-on. fellow club-member TNT added it on when he used to wheel the 95 XJ that was my donor. I don't think it's not seeing 4th gear (OD) because I do have shifts from 1-2, 2-3, and 3-4 with that truck. and my speedometer is calibrated at 1mph lower than actual speed, using a 34 tooth speedometer gear and comparing constant and varying speeds to a pair of different brand GPS at the same time. is it possible that it's coming back out of OD? likely, but it would be a shift that I feel. the vehicle is getting 19mpg on the interstate though. I apologize for the thread jack, though hopefully this info will apply. Link to comment Share on other sites More sharing options...
HOrnbrod Posted January 8, 2009 Share Posted January 8, 2009 Not sure. But I had a torque converter lockout switch installed on my rig by Hesco when I had a dyno run done a couple of years ago, and it came in and out of O/D randomly. It was wired into the POWER/COMFORT switch at the lower steering column (column shift) and the TCU wasn't involved at all. The brake switch also had an input to this switch. I did not like it, pulled it out, and sold it. There are several ways to wire a torque converter lockout switch in; I think the best way is directly to the #2 and #3 AW4 solinoids w. a manual bypass. Don't know how your is wired; I'd suggest you take it out, go back to the original AW4 control wiring, and see what happens. Link to comment Share on other sites More sharing options...
Eagle Posted January 8, 2009 Share Posted January 8, 2009 Maybe the torque converter isn't engaging? A friend in NAXJA found that with his 89 XJ with AW4. He never noticed around town and going from home to Paragon, but when he hit the highway to Moab it was immediately obvious. He wired in an override switch to lock the torque converter IN, not to lock out the lockup. Link to comment Share on other sites More sharing options...
CWLONGSHOT Posted January 8, 2009 Share Posted January 8, 2009 I'm running 4:56's a AW4 and 33" tars. I really like to combo. Plenty of power and good economy. I haven't driven on the highway lately so don't remember the RPM's @ 60. But it shifts into OD @ 42-43MPH and 1500RPMs just driving normally around town. CW Link to comment Share on other sites More sharing options...
JeepcoMJ Posted January 8, 2009 Share Posted January 8, 2009 Maybe the torque converter isn't engaging? A friend in NAXJA found that with his 89 XJ with AW4. He never noticed around town and going from home to Paragon, but when he hit the highway to Moab it was immediately obvious. He wired in an override switch to lock the torque converter IN, not to lock out the lockup. lock-out, lock-in. same difference. It's certainly not locking it out, it is to lock it in in low gears. I'm going to do the simpler route and test it...swap the trans. computer. Link to comment Share on other sites More sharing options...
pingpong Posted January 9, 2009 Share Posted January 9, 2009 I have a xj with 33's and 4.10's with a manual trans. I wish I would have gone with 4.56's. I have to down shift on some of the hills so I can keep up with traffic. Link to comment Share on other sites More sharing options...
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