100 Series vs 80 Series (1 Viewer)

[Atticus]

More control. Have you ever moved quickly in 4-lo in between obstacles (a short good section of the trail) and seen a big ditch ahead that you need to slow for? A sudden turn down a hill. An oncoming quad? It works...it's works safely...AND..........when crawling it knows to not operate. That's the beauty of it. It's transparent and has never hindered me on the trail in how many trips? It only helps.

I thought the conventional wisdom was that braking was faster when you locked up your wheels on loose surfaces. But, I have never driven fast enough in 4 low for it to make any difference.

 

[spressomon]

Christo has mentioned the R&P on many occaisions. I believe in almost every 80 vs 100 thread. It is not new info. There are threads on different owners blowing front diffs so this should not be news to anyone.

The interesting thing about the 100 R&P (actually only the ring gear per Christo) issue is that they are 80-series R&P. So if the 80-series guys aren't having a problem I have to assume it is not the fault of the R&P? Maybe I am oversimplifying this...

 

[uzj100]

I guess my biggest challenge with the 100 is why do we even have to think about the front diff breaking. This is craziness. This is a Land Cruiser. The mack daddy of expedition style offroad vehicles. I thought it was the 2 pinion vs 4 pinion and now we hear that may not even be the problem. When will the front diff breakage madness end? Will there ever be a cure?

 

[ShottsUZJ100]

When will the front diff breakage madness end? Will there ever be a cure?

I don't know of any that broke that had an ARB locker in it (open or locked)....so that might be (or might not be) a fix.

As said....I hopped really good on Pyeatte first using TRAC. I locked rear and kept hopping. I locked front and kept hopping. Finally I made it. A '99 broke the front diff here whicle hopping. I didn't despite first rying with TRAC.

???
???

Time will tell.

 

[sleeoffroad]

The interesting thing about the 100 R&P (actually only the ring gear per Christo) issue is that they are 80-series R&P. So if the 80-series guys aren't having a problem I have to assume it is not the fault of the R&P? Maybe I am oversimplifying this...

I have broken two 80 series front diffs. Both doing what I was not supposed to do. Backing up while pulling someone out. I can understand this.

I do not understand the 100 diff breaking that easily. The frequency is way more than people with 80's.

 

[spressomon]

I have broken two 80 series front diffs. Both doing what I was not supposed to do. Backing up while pulling someone out. I can understand this.

I do not understand the 100 diff breaking that easily. The frequency is way more than people with 80's.

Right. But it's the same R&P (OK...4.30/4.10 vs 4.11...but you get what I mean)...so it must be some other stress riser involved (in my mind).

 

[Living in the Past]

I usually read the 80 Series posts, but would like to know from THIS GROUP a little more about the 100 Series. I CAN READ THE POSTS TO GET THE BASIC DIFFERENES BETWEEN THE TWO SO I WON'T BOTHER YOU WITH THOSE QUESTIONS. What I want to know is what are the pros and cons to the 100 Series? Those of you who may have owned both, which would buy over again? Any input would be greatly appreciated!

Brian
97 L/C CE
91,500 Miles
Phoenix, AZ

Well since I have posted in this section, live in Phoenix and own a 100 series I will give you my opinion of the 100 series. Mine is basiclly a DD but is used off road but nothing hard core. I have a second home in Northern Arizona at 6,900', while some have posted that AZ doesn't have any real winter I don't agree. Up north we have had snow on the ground since the end of November. Last Monday there was 18" on the ground when I left. I40 by Flagstaff is used to test new materials in road construction, why? Because six months of the year the average highs are above freezing with the lows below freezing. Not only is this hard on roads but also cause a lot of icey road. We travel on state route highways at night so we feel the need for TRAC/VSC. We have a V8, full time 4WD 4Runner we were using until January of last year when we bought a 2000 100 series, since that time we have not driven the 4Runner up north. Even though the runner is the sport model with the XREAS and handles better it still doesn't have the fill of the 100 series. Most of my off roading is do in the north half of the state on forest service roads while most are pretty tame they do have a lot of wash boards areas, this is where the IFS really shines. Areas that I'm slowing down in my FJ62 because I'm afraid I end up going sideways are not a problem in the 100. The down side of the IFS is last year while elk hunting I tear a inside CV boot with a rock, so yes I really do use this off road just not rock crawling. I had have plenty of years bouncing around off road in a 40 series, now that I'm in my fifties I'll take comfort and take the bypass. It is just nice to drive off road all day and not have my back killing me. Of course if is bothering me I can always turn on the heated seats. There is a reason the 100 series has lasted ten year now while the 80 series lasted only seven, it is that nice of a vehicle. I don't have anything against the 80 series in fact there is one in the family I have my eye on, just waiting for them to replace it. Of course it is a Land Cruiser so that might be a while. While I've only owned my 100 series a little over a year I have had at least one Land Cruiser for over thirty years and that whole time has been in AZ so I do know a little about cruisers and AZ. If I could only own one it would be the 100 series. Bottom line it depends on what you what it for? If off road is the main reason you already got the vehicle to mod for that. If it is a all around 4WD the 100 series wins in my book hands down.

Just my .02

John

 

[alvarorb]

Have you ever moved quickly in big ditch down a hill? It works...it's works safely...AND..........when crawling it not operate. That's the beauty of it. It only helps.

WTF?

Alvaro

 

[spressomon]

WTF?

Alvaro

LMAO...on the floor ...and NO those aren't tears of pain.

 

[Waggoner5]

I would never want ABS in low. If I am in low, I am going really slow and when I want to stop, I would rather had the wheels skid than not. This is a personal opinion yes, but I am just not a huge fan of some of the computerized stuff that the OEMs are going to. All of the caca on the 100 is what makes it a 100. I like them fine, but I own an 80, sort of...

 

[DesertCruiser]

John (Living In The Past),

Thanks for the post. That's pretty good info. Seems like you're saying a lot of the things other are saying, and I really appreciate it.

Yeah, I laugh pretty hard, too when people say that Arizona doesn't have winter. I think most of the world just assumes it's 115 degrees every day of the year in AZ. Pretty funny. I'm not saying the winters are harsh here in Phoenix, but we certainly have parts of AZ that are a lot colder with a lot more snow/ice/etc than where I grew up (Seattle). It's pretty funny.

Anyway, thanks for the post.

 

[dclee]

Right. But it's the same R&P (OK...4.30/4.10 vs 4.11...but you get what I mean)...so it must be some other stress riser involved (in my mind).

Does anyone know if the 100 Series uses reverse cut, high-pinion gears like the 100? The reason 80s break in reverse, as Christo has experienced above, is because of this. They are cut that way in the 80 for more strength going forward, and higher clearance, at the expense of weakness in reverse. I don't know, however, if the 100 is setup this way.

 

[dclee]

Yeah, I laugh pretty hard, too when people say that Arizona doesn't have winter. I think most of the world just assumes it's 115 degrees every day of the year in AZ. Pretty funny. I'm not saying the winters are harsh here in Phoenix, but we certainly have parts of AZ that are a lot colder with a lot more snow/ice/etc than where I grew up (Seattle). It's pretty funny.

Half of my family is from Arizona. All ASU alum with one UofA black sheep. The other half is from Connecticut and Pennsylvania. I don't care what anyone says, Arizona does NOT have harsh winters, and most certainly not compared to ALASKA, as a previous poster inferred...

 

[spressomon]

Does anyone know if the 100 Series uses reverse cut, high-pinion gears like the 100? The reason 80s break in reverse, as Christo has experienced above, is because of this. They are cut that way in the 80 for more strength going forward, and higher clearance, at the expense of weakness in reverse. I don't know, however, if the 100 is setup this way.

I assume you mean, in your first sentence, if the 100 Series is like the 80?...and since the 100 & 80 both use the same R&P I would have to assume they are the same cut.

 

[dclee]

I assume you mean, in your first sentence, if the 100 Series is like the 80?...and since the 100 & 80 both use the same R&P I would have to assume they are the same cut.

Oops, yup, that's what I meant.

 

[Living in the Past]

Half of my family is from Arizona. All ASU alum with one UofA black sheep. The other half is from Connecticut and Pennsylvania. I don't care what anyone says, Arizona does NOT have harsh winters, and most certainly not compared to ALASKA, as a previous poster inferred...

I think your missing the point. Arizona may not have as harsh as Alaska but that doesn't mean we don't have winter. Phoenix/Tempe(ASU) is at 1,100' elevation while Flagstaff is at 6,900' elevation. If your family had gone to NAU they might have a different opinion of winter in Arizona. If you check zip code 86001 (Flagstaff) on www.weather.com and check average temps you will see that over six months of the year the highs are above freezing with lows below freezing. This means that during the day snow melts then freezes to ice at night. This causes icey roads with spots of black ice. The state routes I drive at night with have dry pavement with spots of black ice. Trac/VSC work well in these type of conditions while lockers are worthless. Can't use lockers on hard surfaces and by the time you could switch them on your off the road. With deep snow lockers are better so maybe in Alaska that is the way to go but in Northern Arizona I'll take Trac/VSC. I guess in the long term maybe I'll add ARBs front and rear, best of both worlds, to bad you can't add Trac/VSC to an 80 series. The there's a reason that Trac/VSC is show up on all kinds of vehicles, it makes them safer.

Here' a couple of non winter pictures from AZ

 

[LX_TREME]

From JDM website 100-s vs 80-s

 

[dclee]

I think your missing the point. Arizona may not have as harsh as Alaska but that doesn't mean we don't have winter.

Actually, I'm not. I never said AZ didn't have winters. I've spent many a Christmas in Phoenix, have even skied Snowbowl (in the distant past).

However, the original point was that a poster in Alaska who runs a shop sees a lot of problems with 100 Series rubber CV boots, and blamed it on the extreme cold. Then someone compared that to winters in AZ by referencing Mt. Lemmon. My point was that "ain't no way in hell" the worst on top of Mt. Lemmon is the same as the worst in, say, Denali National Park in Alaska. When you've got a state that competes with New Hampshire for the title of "world's worst weather" based on the overland wind speed record, I think AZ falls somewhere WAY down on the list...

 

[Living in the Past]

When you've got a state that competes with New Hampshire for the title of "world's worst weather" based on the overland wind speed record, I think AZ falls somewhere WAY down on the list...

I can't agree more with not having the worst weather. I think Northern Arizona has one of the best four season climits in the country. It's just that thirty degree temperatures every day pays hell with things. Maybe not as hard on CV boots as the extreme cold of parts of Alaska. It has been minus eleven this month and the Snow Bowl did have to cancell it's opening last weekend because high winds blew all the snow off the slopes.


I think in this climit Trac/VSC is a better choice. I can see where with all the records snow falls in the Denver area could cause problems on the 100 series with Trac/VSC. But making is sound like some was just simply driving in there driveway and it broke is just the same as saying MT Lemmon is the same as Alaska. I could see someone having problems getting stuck in their driveway and trying to rock it back in forth. I use to do this myself in a rear drive car with open rear end. While most on this site would know to lock the transfer, put it in lo range and use 2nd gear start. But if you read that post you would see who was driving. I'm seeing someone just switching for forward to reverse and gassing it. This would seem to be the prefect way to break a reverse cut ring gear with Traction control. While a 80 with lockers would be the best, a open diff 80 would probably just stay stuck with no damage to the front diff. I haven't had to use the traction control I believe use a light foot on the gas would be the way to go, hopefully having the wheel spinnig slower when trac switches on.


John

 

[ShottsUZJ100]

WTF?

Alvaro

Definately a Ted Kennedy supporter.

Takes other's sentances and cuts out words at will to make an inaccurate point.