Topic: duals or single?

[dloeffler]

  :confused:Hello out there. Im trying to get my truck ready for summer. Its getting close but I still need to do something with my T-case. I have stock 2.28 gears right now and another stock case to use for a doubler. My question to y'all is, should I go with 2 stock cases or a single 4.7? I cant afford both. does anybody reading this have 2 stock cases? I could always get and install 4.7 in the 2nd case later right?

[toyodaaddict]

duals for sure. i run dual stock cases and it works great. yes, you can allways add the 4.7 later. i plan to for the cool factor but theres never been a time where my stock duals where'nt slow enough to get the job done.

[Nimyad]

Dual stock over single 4.7 every single day of the week. It's a lower gear ratio, it helps your front driveline angle, and you retain stock low which you will be using a lot.

[zembalayan]

Y

So between this morning when i asked what to do and this afternoon i went ahead and ordered 4.7 to run as a single, with the intention of doubleing up next winter. did i blow it? o ya, i didnt ask my wife befor i spent the $ ether. Think im in the dog house!!

You didn't blow it.  You're gonna love it.  I did the same thing as you are doing.  I went with a single 4.70 gear set then to dual ultimate.  Enjoy!

[89 runner]

duals for the man rig
single 4.7 case for the women.
duals with gearing and one rear locker is fun/challenging.

[zembalayan]

 

duals for the man rig
single 4.7 case for the women.
duals with gearing and one rear locker is fun/challenging.

I am not quite sure what you are getting at here with your comment.  The OP went with a single case for now; he's gonna have a ton of fun with it despite your perception of his rig's stronger identification with the female gender role, and he will maybe save for a dual case adapter, build materials or aftermarket parts for a dual case cross member, new drive lines, and possibly some suspension, too, since he may not want to or afford to mod the drive lines several times, first for duals, then for suspension, etc.  Some posters seem to be throwing out answers here like there is a clear choice with no pros or cons for either option.  My opinion: Ideally, you might consider saving enough money and carefully amassing enough parts to execute all-at-once a single build plan rather than spending possibly a lot more money, but in the form of smaller sums over time, while trying different set ups and build paths and then backing off to try other options; but that's fun, too. 

I tried my hand at choosing a slow progression that would not require selling off any parts as I upgraded to stronger and better options.  As part of this plan, I chose first to go immediately with an R151F and a 23 spline single 4.7 case as my first upgrade for my 1993 22RE 4Runner because I knew that eventually I would get a dual ultimate, and I would want a 23 spline 4.7 gear set in the rear t-case rather than the 21 spline that would be required behind a G or W tranny with a single case.  Does 21 vs. 23 matter really in the rear case?  I am thinking probably not, especially since many of us are just running 20Rs and 22Rs with 5.29s and Toyota-reasonable tire sizes (<38"ers) , but that's just what I went with since I wanted an R151F and eventually I would want a dual ultimate with 23 spline 4.7 gear set in the rear case. 

When I modded my 1980 from stock, I just went immediately with a dual ultimate (21 spline 2.28 in the front and a 23 spline 4.7 gear set in the rear) rather than working a slower progression because, i knew I liked it already, and I had saved enough cash to execute all at once. 

With regard to my rigs being manly or womanly, well, mine are totally wuss rigs, and I love them like that.  I'd say for a man's rig you might want to try bald, patched, and plugged 28" off brand tires, open diffs front and rear with 3.90s, a worn out clutch, a manual steering push/pull box, no armor of any kind, a faulty weber carb, no gloves, no strap, no tools, no CB or HAM, and then wheel some hard and remote trails at night in early spring with some unexpected rain while working together or against some drunk wheeling buddies who never PM there rigs and envy yours because it's a 1979 SR5 4x4 first gen. "barn find" with nearly perfect paint, decals, interior, and sheet metal. 

[tgmaul88]

With regard to my rigs being manly or womanly, well, mine are totally wuss rigs, and I love them like that.  I'd say for a man's rig you might want to try bald, patched, and plugged 28" off brand tires, open diffs front and rear with 3.90s, a worn out clutch, a manual steering push/pull box, no armor of any kind, a faulty weber carb, no gloves, no strap, no tools, no CB or HAM, and then wheel some hard and remote trails at night in early spring with some unexpected rain while working together or against some drunk wheeling buddies who never PM there rigs and envy yours because it's a 1979 SR5 4x4 first gen. "barn find" with nearly perfect paint, decals, interior, and sheet metal. 

THATS ME THATS ME !!!!!

[zembalayan]

THATS ME THATS ME !!!!!

And you, sir, I am quite positive are/or will be a better wheeler (man) than most!!!     Be safe; lean into your pain, and always refuse help and handouts from strangers who may be better equipped and prepared than you and your drunk friends are      because when go out there utterly unprepared except for no-holds-barred trail tamponry, well sir, you don't want to give the false impression that you are intentionally trying to break down on the trail in order to obtain free parts and/or repairs from the more experienced, prepared (or what some might consider "womanly" ) wheelers out there, right?     just kidding, of course, but I will say, there is really something to be said for taking a stock Toy 4x4 (maybe a long bed) out on tight, harder trails just to give yourself an old reality check at times!

[Sparkplug]

I was hinking about this today, and I decdided this.

4.7s in a single case is stronger than dual cases.

You see quite a few dual case setups brea the input shaft on the rear case. This I believe is because of the added torque from the crawl box. A single 4.7 case does not see this added torque. I wonder if this is why we only see 4.7 gear sets strip, and not the inputs exlpode like alot of 21 spline dual guys.

Just a thought I hadnt seen discussed yet on this topic

[Rocksurfer]

You will love even a 4.7 single case, it will be low enough for just about everything except if you try to climb a wall.

[bryanrz]

You can also check out longfeilds  rear output shaft  if your worried about that breaking. Or marlins if they ever stock it again.

[pumkin toy]

i have another question. i would like a set of bobby longs. what do i need to do in my 3rd? can i get a locker b4 i get the longs or do you have to specify your spline count?

you don't have to do anything at the third for longs.  all 8" thirds are 31 spline.  A locker will not affect whether longs fit or not either.

[pumkin toy]

they are not dumb ?'s. Its good to know what you are doing and what parts you need before you order them.  Its never fun getting excited when your new parts show up, then they don't fit!

[Snowtoy]

............ordered up gears yesterday. currently begging for forgivness with the wife 8)

It is always easier to ask for forgiveness than to ask for permission.

[TimberlineBryce]

I have single 4.7 and I love it!

[Cyberman]

A single 4.7 case is a good place to start.  You can always put a second one in front later.

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[John Doe]

Just hold on to that spare t-case and remember that when it is time for duels that you will have to $ for drive shaft work as well as the $ of the adapter.

[Cyberman]

Just hold on to that spare t-case and remember that when it is time for duels that you will have to $ for drive shaft work as well as the $ of the adapter.

Cross member and speedo extension too.

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[zembalayan]

Cross member and speedo extension too.

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And a VSS possibly as well.

[Nimyad]

Cross member and speedo extension too.

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Don't need a speedo extension, just reroute the cable.

[bryanrz]

Don't need a speedo extension, just reroute the cable.

depends on year of truck

[81 yota]

What did you go with dual or single 4.7? I'm about to go duals