Will it work for a 2007 Tundra 2wd rear dif?

I tried this is my 2007 Tacoma Prerunner with the mechanical limited slip diff and the clutches just wouldn't properly slip no matter how much friction modifier I added. I ended up throwing out some good money worth of oil and put cheap Castrol LSD gear oil in it and it worked fine. I don't think this is a bad product, Toyota differentials just do not like synthetic oil in some cases.

Will this work for toyota rav4 awd 2016?

Refer to your owners manual. IF the application (transmission/transfer case) states lubricant per GL5 then yes, it will work great. If GL4 then look at Red Line ATF. NOTE: API GL classifications do not go up and down like motor oils (API SN may be used in SL spec engine). GL5 is totally different from GL4 and will damage synchronizer surfaces and or limited slip clutches if not applied correctly.

Will this viscosity provide adequate protection for a 1971 C10 daily driver?

I noticed a difference when I changed mine out to this. I just used their mt90 for my manual transmission and it made a huge difference

Lexus gs 350awd says 1.4qt 75w85 for rear and .7qt 80w90 for front diff. can i use this for both? have a bit of 80w90, can just buy 2 bottles.

I would recommend staying with the fluid recommended by Lexus. If it were me, I would buy one of each fluid required.

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50104 75W85 GL-5 Full Synthetic Gear Oil For Hypoid Limited Slip Differentials - 1 Quart

Product ID: 257386190

Details

Brand
Red Line
Item weight
2 Pounds
Liquid volume
32 Fluid
Material
Synthetic
Package information
Bottle

🔥Full synthetic polyol ester base for extreme pressure

⚙️75W85 SAE viscosity grade

🏎️Friction modifiers for limited slip differentials

Description

⚙️ Shift to the future with Red Line’s ultimate synthetic gear oil!

VERSATILE COMPATIBILITY - Trusted by top automotive brands like BMW, Ford, Lexus, and popular in Formula racing transaxles for unmatched reliability.
ULTIMATE GEAR PROTECTION - Exceeds API GL-5 specs with extreme pressure additives to reduce wear, noise, and heat under the harshest driving conditions.
PRECISION VISCOSITY CONTROL - Maintains optimal gear protection and efficiency across temperature extremes with a high Viscosity Index of 163.
RACE PROVEN SYNTHETIC FORMULA - Polyol ester base stocks deliver superior shear stability and oxidation resistance for longer drain intervals and peak performance.
BUILT IN LSD FRICTION MODIFIERS - Engineered for clutch-type limited slip differentials—no extra additives needed, ensuring smooth, confident handling.

Red Line 50104 is a premium 75W85 full synthetic gear oil formulated with polyol ester base stocks and friction modifiers for limited slip differentials. It offers exceptional shear stability, oxidation resistance, and viscosity control, making it ideal for high-performance road and racing vehicles. Compatible with many late-model vehicles and racing transaxles, it exceeds API GL-5 standards to deliver superior gear protection, longer drain intervals, and enhanced differential efficiency.

Specifications

ASIN	B000J3G8KE
Best Sellers Rank	#31,569 in Automotive ( See Top 100 in Automotive ) #400 in Automotive Oils
Brand	Red Line
Brand Name	Red Line
Container Type	Bottle
Customer Reviews	4.9 out of 5 stars 863 Reviews
Global Trade Identification Number	00083522501040
Included Components	75W85 GL-5, Full Synthetic Gear Oil
Item Form	Oil
Item Type Name	ENGINE OIL
Item Weight	2 Pounds
Item weight	2 Pounds
Liquid Volume	32 Fluid Ounces
Liquid volume	32 Fluid Ounces
Manufacturer	Red Line
Material	Synthetic
Model Number	RED50104
Number of Items	1
Package information	Bottle
Part Number	50104
Recommended Uses For Product	Vehicle
Recommended uses for product	Vehicle
Specific Uses For Product	Vehicle
UPC	083522501040
Unit Count	946.35 Milliliters
Viscosity	Lightweight
Warranty Description	LIMITED WARRANTY

Reviews

J**N

Rear diff oil

10.10.2022

M**B

Super

16.04.2022

M**M

Great product

3.04.2026

J**Z

Just What You Need for Axle oil change

2.03.2026

I**A

Best!

20.04.2026

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