Red Line 57905 75W90 GL-5 Synthetic Gear Oil for Hypoid Limited Slip Differentials - 1 Gallon

Price is high but product is good. I’ve been using for years and will continue to use it for years

Works great

This stuff is top of the line in my opinion. I run it in my wife’s 4runner and in my GMC Sierra. I would highly recommend this product. I won’t use anything else

I've had dozens of mid 70s, early to late 80s, early 90s RWD Toyotas... Coronas, Celicas, Supras, Corollas, 4Runners and pickups. I usually used Mobil synthetic in the diffs and transmissions... but my latest 94 2WD pickup I decided to try this. Let me start off by saying that this truck had the notchiest, stickiest shift I've ever experienced in a Toyota (yes, even worse than an R154)... so much so I thought the slave cylinder was leaking and the clutch just wasn't getting pressed all the way. I'd read great things on various forums, and decided to at least try... even still not believing in a miracle cure.When it came time to change to the fluid, the diff fluid was rather dirty, but not the worst I've seen. The W55 came out cleaner... somebody had obviously replaced the 75W90 recently, so as I'm watching it drain I'm thinking this is going to be a bust.Well not so... on the test drive around the block it was already noticeably easier to shift, and after a 100mile drive, it's insanely better! Still has a great notch into gear, but no more double or triple pumping the clutch and jamming it in there. Absolutely positively recommend. Makes me want to go get an R154 and try this.Also, pro tip, Toyotas have magnetic drain plugs on the diff and transmissions... clean them (the W55 oil may have been clean, but the plug had never been touched)

It took two tries to get a gallon here. I'm guessing the first one leaked. So far, it seems good. My rear differential in my 2007 4Runner is running a bit quieter and it just "feels" smoother. It has close to 220K on it and I'm not sure the last time the fluid was changed so I figured I'd buy "the good stuff." I'm happy with the results. I'm doing the transfer case and front diff next.

I've been running Redline products in my 07 Dodge 3500 for years. I run this in my diffs and the Redline C+ in my transmission and transfer case. Oil analysis from Blackstone are positive.

This stuff makes me feel rich when I spill it. So smooth when cleaning up. Stinky too!

The gear oil is fine and much more affordable than other brands. The shipping was slow, it took 7 days for it to arrive. Plan ahead.