If it's as simple as substituting a different Toyota differential, wouldn't you would expect Toyota to offer it as an option? Or are they planning that for the 2011 model year, to give us something to "trade up" to?
I'ts probably not so much an issue of difficulty rather than simple fuel efficiency. I'm sure they would loose a few MPG on an AWD version of the truck, plus they would have to package it with other options to make it marketable and profitable.
There are issues of profitability here that probabably do not make AWD worth it right now. I would also assume they would offer a rear locker before AWD, and that has yet to be done or discuessed as a future option.
__________________ 2008 CrewMax 5.7L Limited +Nav - Salsa Red
Nitto 35x13x20 (325/60r20) on Balistic 20x9 (+12mm) Wheels
LazerLite Tonneau, Wilderness Rack, XM, Scanner and Broadband Antenna's. Davis Weather Station (remote anemometer up/down control), 3 Cameras, Shovel and High-Lift Mounts, 2 Bed Mounted 5gal. Jerry Cans
Bearcat Scanner (GPS and Remote Head), Ram Mounted Tablet PC (GPS - Google Earth, USB HUB, Broadband, and Video wired). Cobra Integrated GPS Radar, IPOD and XM Integrated
Dropped the stock transfer case out today, took about an hour and was very easy for that type of work. We'll triple check the wiring and slam the AWD case home.
__________________
Brian
Jowett Engineering
Extreme duty parts for the Tundra that works and plays.
Webpage coming soon!
2008 DC TRD Supercharged w/ AWD
I'll just hold my breath for an aftermarket rear posi or locker ( turning blue in the face )
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2007 Tundra 5.7 4x2 RCSB slate metallic
2005 Corolla - all stock, cause it's the wifes
1986 Mustang GT - the stereo is under the hood
1990 Corolla - cause it was really cheap
This is getting very interesting. Keep us informed.
__________________ 07 Crew Max Limited 5.7 4x4 Radiant Red 18,500 miles May-29-09 . Debadged,Matching Tint,Chromed Out Grill,LINE X(Xtra),Custom Plates (IFORCEU),TRD Anti Sway Bar,JBA SS HEADERS,CORSA Sport dual sides ,Bilstein 5100's Shocks,Volant CIA,Weight Reduction,Gutted 2nd Cats,Color Matching door Handles.
Every once in a while someone asks how much it would cost to convert a 2wd to a 4wd and everyone else just tells them to sell their current truck and buy a 4x4. I wonder how much more it would cost to convert a 2wd to AWD than a 4wd to AWD since in both cases you need some of the same parts. I would assume that its cheaper to convert from 2wd to AWD than to sell a 2wd, buy a 4wd and convert to AWD.
It's probably near impossible to convert since the wiring will be missing from the 2WD model, not to mention I bet the ECU programming is different (they have different flashes).
If you could find a manual transfer case that fits (totally manual- pull a cable/lever type), it could probably be done. You're still looking at a ton of other junk- swapping or selling the truck is still the more cost effective option.
You could look at it as an excuse to do a live axle front conversion though
__________________
Brian
Jowett Engineering
Extreme duty parts for the Tundra that works and plays.
Webpage coming soon!
2008 DC TRD Supercharged w/ AWD
It's a straight bolt in. If you look at the picture in post #33 you can see every bolt and nut required to remove it... yup, that one little pile.
__________________
Brian
Jowett Engineering
Extreme duty parts for the Tundra that works and plays.
Webpage coming soon!
2008 DC TRD Supercharged w/ AWD
Gone are chirping tires followed by the flashing lights on the dash ... gone is the wheel spin... gone are the worries of throttle reduction at the wrong time.... it just hooks up and away it goes.
Now for one issue we hope to solve tomorrow. The yard I purchased my transfer case from was nice enough to remove the fragile plastic t-case actuator so it would not get broken during shipment. The problem is they simply pulled it off the back of the case, leaving the shift rods inside the case. This is a no no... one should break the case open, undo the forks and pop the actuator off with the rods. This prevents the clocking issue which I now have to deal with.... more on that later.
__________________
Brian
Jowett Engineering
Extreme duty parts for the Tundra that works and plays.
Webpage coming soon!
2008 DC TRD Supercharged w/ AWD
Congrats! Now I need one too! Did you endup having to do anything with the electronics or harness or did it to simply plug in did the ECu just recognized it as the regular transfer case and operates it mecanically when in 2wd to send power to the front?
Would the Lexus LX transfer case be the same? It's offered with the 5.7... are the LC 200 T-Cases readily available out there?
Re: Project traction
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07 TUNDRA SR5 4x4 5.7 DCLB
Linear Mode
