lexus rx300 : If I'm wrong I'd love to know why! Also, if I'm wrong Lexus has done apoor job on their brochure which I just read and re-read a few times.[None of the online material I read - carpoint, Motor Trend, Lexus website - addresses this issue.Yup, this is my understanding too, although many moons ago I was led to believe that it came with two Torsen diff's, center and rear, while the center LSD (not coupling!) seems to be viscous indeed.It's as genuine full-time 4wd as the RAV4 and Land Cruiser 80/100 series, as in 'wheels driven all the time' (my more strict definition, instead of the old 'can be left engaged all the time', which has thankfully been captured by AWD-markedrones, and muddied the definition of full-time).Yup, as long as one end has sufficient traction, on both wheels (that is where the rear LSD starts making sense, you then only need traction on one rear wheel....for the front this is no solution of course).Sortof yes, all assuming non-sufficient traction on the off-road/digging wheels....remember that an open diff splits *torque* equally, IOW the left wheel gets as much propelling force as the right wheel, but it depend on the least-traction wheel how *much* force that will be.
lexus rx300 : Don't ignore the fact that your front wheels still aren't completely dead as in a 2wd....they at least are able to pull themselves out of a whole, if not add significantly to the propelling force overall. Zero traction is very rare, only airborn wheels fit that category (ignoring rotational inertia)....even on ice a 4wd can accellerate faster than a 2wd.If you want to spend 10 grand more foir the same truck.Get the Landcruiser if you have all da $$$$$$$$David Hoerl wrote in message ...I've been looking at the Lexus RX300 AWD. I cannot find any mention of thecoupling to the front tires (LSD, viscous, etc) so I assume that this is astandard differential coupling. Without the LSD rear diff option, it againappears logical that the rear wheels connect via a normal differential.And, there is a viscous coupling between front and back wheels.So, I make the following assertions:1) that without the rear LSD, the car can pull me out of a snow bank Iback or plow into (viscous center coupling means rear set and front setwill turn)
lexus rx300 : 2) without the rear LSD, if I slide off a snowy road and have one frontand one rear wheel on pavement, neither front wheel nor either rear wheelwill turn (normal diffs controls both front and back wheel pairs, so bothoff-road wheels will spin in the snow)3) with the LSD, in 2) above, the rear wheels will both pull, so I'll havethe equivalent of a rear wheel drive LSD equipped car (like some BMWs).Thus, I conclude that the RX300 AWD is of use to people who plow intosnowbanks, or back off pavement into something soft, but NOT people whofind themselves half off a road. In addition, on wet or icy pavement,without the LSD one each of the front and back wheels will spin. With theLSD, only one front wheel will spin placing all thrust on the back wheels.If I'm wrong I'd love to know why! Also, if I'm wrong Lexus has done apoor job on their brochure which I just read and re-read a few times.[None of the online material I read - carpoint, Motor Trend, Lexus website - addresses this issue.
lexus rx300 : if any of you have driven both 99 Lexus RX300 and GrandCherokee V8, pleasecompare these two in details.IMO if you are intending to ever do any off-roading in it then the Grand isthe way to go. For '99s make sure it is a later build, recent actually, asearlier ones had some difficulties though DB/Chrysler now seem to haveworked out the difficulties.A neighbor down the block has the 300 and it rides very nice on-road andfeels very much like a car. More so than the Jeep. Some people like this andothers don't. The Jeep will certainly feel more truck like on-roadconsidering its solid axles and beefier suspension which are really gearedfor off-road. IMO Jeeps are more compromised for on- and off-road than the300 is which appears to be biased to on-road comfort. Nothing wrong withthat especially if you consider that most suvs are being purchased asall-weather vehicles by people looking for that edge when dealing withtraction.Both vehicles look good. I prefer the straighter lines of the original ZJover the newer WJ though.
lexus rx300 : For a vehicle its size the Grand is phenomenal off-road. I don't think the300 could touch it there.A big consideration is service. I would imagine that here the 300 would be amuch better choice. I painfully say this because of my own and othersexperiences with DB/Chrysler service. It is abysmal. Luckily, I have hadvery few warranty issues and just have had to deal with annoying but littlethings in my own Grand. The bottom line, I hesitate to even bring my Grandin for servicing. Thank heavens my friend who is the owner of a Mobilstation is also an ace Jeep mechanic.--Jeff SchwartzI may not be as good as I once was but I am as good once as I ever was!'97 Grand Cherokee Ltd. / \#[||||||]# * *Remove nospam to replyI spent about three months last winter going through every SUV on themarket. Then did the same for my wife for the mini-SUV's. I had comedown to the two choices for myself, the Lexus RX300 and the GC V8.One of the big factors in my decision was the fact that Lexus wantedto screw me on my trade in (1997 Mitsubishi Eclipse Convertible,Turbocharged). Lexus offered me more than 6,000 LESS for it than Jeepdid. What pinheads. I was glad when I got my Jeep, though. Granted,as Jeff said in his reply, the Lexus is more like a car ride. But Istill found the Jeep to be the most comfortable ride, since theinterior was, to me, so much nicer. Since sometimes I can end upspending a lot of time in my vehicle, I wanted the best seats andinterior, and I thought that the Jeep far outdistanced Lexus for theinterior comfort. And the other comments Jeff made were right on. Ifyou want something to run back and forth to work, the Lexus would befine, but if you want something that can do more, the Jeep is by farthe better choice.
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