I was looking over the packages for the new Taco Access cab trying to spec out my ideal truck. I want the TRD off road mainly because of its excellent locking rear diff. However, I would also like a limited slip diff. as well, mainly for better on road traction. Does anyone know if you can somehow get both from factory? Or would I have to choose between the locker or limited slip, that comes as part of the TRD Sport package? I think this is something many buyers are going to want especially now that the bed is lightweight plastic. Coupled with rwd means alot of tire spinning, I would think.
I thought the lightweight bed was to make up for extra weight in the frame/chassis. I'd bet that there's more weight on the rear of the new Tacoma than on the old.
As far as the rear diffs go, I really wish Toyota would consolidate some of the packages and offer a locking LSD or a Torsen. Making people pick between the two on a truck that potentially costs over $30k is ridiculous. The only thing that helps make up for this problem is the Auto-LSD function which uses the brakes to simulate an LSD to some degree.
The TRD Sport has the mech-LSD to add performance (turns, hard acceleration, etc). The TRD Off-Road has the locking diff for off-roading. The auto-LSD on either is for safety so you can make it home when the roads freeze or you have to drive through snow, etc (but is a bit redundant on the Sport).
but for one I think right now thats a very rare option from what others are reporting. Even still, the auto LSD requires the VSC and TRAC which I wouldn't care for even if I could find it.
Guess if it can't be had, stock, does anyone know if the mechanical LSD can be added by dealer like the TRD unit can on Tundras? Possibly theres a problem with having the electric locker already in place?
The TRD off road has a LS to locker. When you dont have the locker engaged its a LS. I just found that out whyen i did a burn out the other day. One wheel spun then the other one started to spin to.
__________________
Jake
1st toyota and ill never go back! (as long as the truck treats me right)
2005 Tacoma, TRD Prerunner SR5 package #3, White Access cab with the 4.0, and 5 speed auto tranny
Mods done
-Donahoe coil over shocks
Planed Mods:
-Cat back exhust
-Deaver leaf springs and Bilstine 5150 shocks in back
-32 inch tires (dont know what kind yet)
-Billet grill
-Install my Alpine IVA-D300 indash DVD player once a dash kit comes out along with some new speakers subs and amps
If you have a locker in the rear end go in dirt and spin the wheels. On my truck after one slips the other one starts to spin. I think thats LS
__________________
Jake
1st toyota and ill never go back! (as long as the truck treats me right)
2005 Tacoma, TRD Prerunner SR5 package #3, White Access cab with the 4.0, and 5 speed auto tranny
Mods done
-Donahoe coil over shocks
Planed Mods:
-Cat back exhust
-Deaver leaf springs and Bilstine 5150 shocks in back
-32 inch tires (dont know what kind yet)
-Billet grill
-Install my Alpine IVA-D300 indash DVD player once a dash kit comes out along with some new speakers subs and amps
Although we all seem to agree that the salespeople, in general, do not have a very good grasp of what is available on this truck as of yet, I have asked this question repeatedly at three different dealers. I have been told that the Off Road pkg has an open differential with a push-button locker, and the Sport has the LSD. If in fact the Off Road pkg had a LSD with a locker, that's the one I would sign up for...but, again, that is not the way I understand it to be.
I have a 2005 Tacoma TRD Sport Prerunner Access cab. It appears that the LSD has stopped working completely. I have been in a situation with ice 2 times in the past 3 days and I get one wheel spinning on the ice and nothing from the other wheel. I have had problems regarding a dull whining noise in the rear end which the dealer band aided by changing the fluid at 50,000 (it was previously serviced by the same dealer at 30,000, possibly without the LSD additive?). I now have 62,000 and I'm not sure what to do here. They have said that everything is documented so it will be covered but that doesn't do any good when they fail to duplicate the problem (it has been making noise recently also). Any suggestions? I will probably be callling Toyota on this one.
unrelated....
About the TRD Off Road, I saw some Q&A on this. It is NOT an LSD when the locker is disengaged. I spoke with a dealer mechanic on this one.
Ya it sounds like they didn't use the LSD additive to me. I want to change my rear diff. fluid but I'm still a little Unclear what exactly to use. I hope you figure it out. Goodluck be safe
__________________ http://www.cardomain.com/ride/2320006
2005 Silver Streak Mica Tacoma Pre-Runner Sport pkg.# 2,Axcess Cab,2WD,Truxedo Lo Pro Tonnue cover,Auto Vent Shades,Carbon Fiber TRD 3rd brake-Light Cover,JVC Sirius Satellite Radio,Tacoma Bed Matt,AMI Shorty Antenna,Trd Oil Cap,TRD Hitch-Cover,20% Lumar Window Tint,Borla Cat-Back Performance Exhaust,ABS Chrome Grille Cover and I'm Sure I'll Be Broke When I'm All said and Done
the offroad models with the locking rear diff have a quasi-LS function when unlocked. It applies brakes to the wheel that is slipping when spinning, that is why you observe a two tire burnout. It doesn't really work too great though, because if you laid on it for more than five feet you would notice the power skip from one tire to the next. It is not mechanically possible to have an LSD and selectable locker in one unit, that's why it's not offered.
the offroad models with the locking rear diff have a quasi-LS function when unlocked. It applies brakes to the wheel that is slipping when spinning, that is why you observe a two tire burnout.
OK, any ideas on a true test of the limited slip that the dealer can use to see if it has actually failed or not? (they don't seem to have this knowledge, or not willing to figure it out I guess)
I have a 2005 Tacoma TRD Sport Prerunner Access cab. It appears that the LSD has stopped working completely. I have been in a situation with ice 2 times in the past 3 days and I get one wheel spinning on the ice and nothing from the other wheel. I have had problems regarding a dull whining noise in the rear end which the dealer band aided by changing the fluid at 50,000 (it was previously serviced by the same dealer at 30,000, possibly without the LSD additive?). I now have 62,000 and I'm not sure what to do here. They have said that everything is documented so it will be covered but that doesn't do any good when they fail to duplicate the problem (it has been making noise recently also). Any suggestions? I will probably be callling Toyota on this one.
unrelated....
About the TRD Off Road, I saw some Q&A on this. It is NOT an LSD when the locker is disengaged. I spoke with a dealer mechanic on this one.
I've got the Mech LSD. I changed my Rear Diff fluid at 20K. Used your off-the-shelf semi-syn 80w-90 Quaker state (for LSD and non-LSD applications). I didn't add any fiction modifier as there is no mention in the manual. I haven't needed it. Works like she supposed to, always two wheels spinning on the snow or pavement.
I beleive most mech LSD's can only provide the about 20-25% of torque to the wheel with grip (Unlike a like a locker at an even 50/50). But there should be enough to get you moving... wonder if yours could be wearing out already... I would hope not.
If no ice available, maybe get one wheel on a set of rollers, the other on the pavement for a test.
OK, any ideas on a true test of the limited slip that the dealer can use to see if it has actually failed or not? (they don't seem to have this knowledge, or not willing to figure it out I guess)
I would pull the third member and have a look at the clutch pack. If it is smoked you can tell because there won't be any meat left on the clutches. You'll also notice a burnt smell and chunkies in the oil.
2005 Tacoma: Locking Diff and Limited Slip?
Linear Mode
