Differential or transfer case failure on the 2004 Toyota Tundra
1 crash 1 of the 48 reports for this failure mention a crash, a fire, an injury or a death. Those are the owner's words on the complaint form, not a verified finding, and one report can mention more than one.
When differential or transfer case failure gets reported
Owners of the 2004 Toyota Tundra report differential or transfer case failure at a median of 110,000 miles. A quarter of the reports come in before 90,000 miles and a quarter after 160,000 miles, from 32 reports that carried an odometer reading.
A part like this is normally expected to survive 110,000 miles. It is the 4th most-reported problem on this model year.
The mileage distribution
The reported range runs from 65,000 miles at the tenth percentile to 187,500 miles at the ninetieth, a spread of 121,474 miles across the middle 80% of reports.
A spread this wide points at use rather than design. Towing, climate, service history and city mileage all move a failure like this, so the median is a weak guide to any individual car.
3% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 65,526 miles | 90,704 miles | 110,000 miles | 160,000 miles | 187,000 miles |
Read the 10th percentile as “one report in ten arrived this early”. Exact figures are shown in this table because it is the table of record; everywhere else on the site they are rounded to the precision the sample can carry.
What a percentile can and cannot tell you here
These five numbers describe the readings owners gave, in order. The median is the middle one: half the reports arrived below it. The 10th and 90th are the edges of the bulk of the distribution, and the distance between them is the part worth reading. A tight spread — say 70,000 to 95,000 miles — points at something that wears out on a schedule, and the schedule is knowable. A wide one, 20,000 to 190,000, points at a fault that hits some cars and never troubles others, which means the mileage on the listing in front of you tells you very little about your odds.
What these figures are not is a survival curve. Every reading here comes from a car whose owner filed a complaint, so the sample contains only failures: it cannot say what share of the fleet made it past 150,000 miles untouched, because those owners had nothing to report. Nor is the mileage the moment of failure — it is the odometer reading as recalled at the time of filing, which may be weeks later and is sometimes rounded to the nearest ten thousand by the person typing it.
Percentiles are shown at all only once 8 readings exist for the vehicle and mode. Below that the middle of a handful of numbers is noise wearing a decimal point, so the figures are withheld rather than dressed up.
What happens, and what it costs
Of these reports, 1 a crash is mentioned. Owners write their own complaints and the agency does not verify them, so read this as what the reports say happened rather than as a confirmed count.
Putting it right typically runs $900–$4,200 at an independent US shop. That range is an editorial estimate held in this site's failure-mode catalogue, not a figure from NHTSA, and it is a repair cost rather than a diagnosis cost.
The same failure on other years
The same failure is reported on 11 model years of this car. It shows up earliest on the 2008, at a median of 5,000 miles, and latest on the 2004 at 110,000 miles.
By volume the 2004 is the worst of them, which makes this a problem of this specific year rather than of the model as a whole.
If one year stands out to the left, that is the year to avoid; if the whole line sits at a similar mileage, this is wear rather than a defect in one production run.
Tick median reported mileage Solid middle half of reports Faint 10th to 90th percentile Colour how bad the failure is when it happens
What owners wrote
Verbatim from NHTSA complaint narratives, trimmed for length. The mileage is the one the owner gave.
2004 toyota tundra with a limited slip differential. On wet payment, if both wheel spin at the same time ( loose traction), the truck bed will kick left and put the truck into a spin. The truck was taken to the dealer and the dealer said the lsd (limited slip differential) was functioning. He asked me which side the truck kicked. I told him left. The dealer has seen this problem before with this truck kicking left. The dealer stated I had to contact toyota motor sales and file a complaint. This was done and I was refereed to toyota regional office in fl. I was contacted by them and they told me that the lsd was functioning correctly and that toyota has no intention of fixing this problem. This problem need to be fixed! *jb
2004 toyota tundra leaks gear oil from rear differential cover plate. Cover plate is so thin a pin hole developed. Cover plate is pressed on so in order to correct problem, a whole new rear axle is needed according to dealer. When I brought truck into dealer, dealer told me he seen 6 of these like this already. Metal plate is too thin and doesn't hold up to winters in new york and is rusting out due to metal being too thin. Cost for repair is $3500 . When I contacted toyota, they just said there isn't any recalls on this subject yet. They did recall toyota tacomas due to rust eating out the frames but no recalls on rear differential cover plate. If gear oil for rear differential leaks out, due to metal fatigue, truck is not drivable and heat caused by friction of gears could cause a fire. *tr
Tl* the contact owns a 2004 toyota tundra. The contact stated that he noticed a stain in his driveway and took the vehicle to a personal mechanic for a diagnosis. The contact was informed that the rear differential had completely rusted out and was leaking fluid. The vehicle was taken to the dealer for inspection. The dealer acknowledged that there was an issue, but offered no assistance. The manufacturer was notified but offered no assistance. The vehicle has been repaired. The failure and current mileages were 57,166. . Updated 07/27/12 *bf the consumer stated that the vehicle was repaired on 06/25/2012. The consumer believes the vehicle should have been included in the recall for premature frame rusting on the 2000-2003 toyota tundra. Updated 08/02/2012. *js
Also reported on the 2004 Toyota Tundra
Other body or interior problem
Control arm, ball joint or bushing failure
Rust or structural corrosion
Other suspension problem
Steering rack, gear or tie rod failure
Oil leak
How far this goes
Complaints are voluntary, so 48 is a floor and not a count of affected cars. Mileages are typed in by owners and cluster on round numbers. And the mode itself is assigned by software reading the complaint text, which is reliable in bulk and fallible one report at a time.
Questions this page answers
At what mileage does differential or transfer case failure happen on the 2004 Toyota Tundra?
Across 32 owner reports that included an odometer reading, half were filed by 110,000 miles. A quarter were filed before 90,000 miles and a quarter after 160,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is differential or transfer case failure on the 2004 Toyota Tundra?
48 reports have been filed with NHTSA, about 0.6 per 1,000 vehicles. Complaints are voluntary, so this is a floor rather than a count of affected cars.
What this is and is not. These are the mileages at which owners chose to complain to a federal agency, which is not the same as the mileage at which the part fails on every car. It skews toward failures that happened outside warranty, cost real money, or frightened someone. It is still the only public dataset that carries failure mileage at all, and the shape of a few hundred readings is informative even when a single one is not. Methodology · JSON · this failure on other cars
Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt Published by AtWhatMileage How every figure is computed