Eaton posi gear oil 2 cone style posi unit for me. Personally I would go with what the manufacturer recommends but I’ve always seen a modifier required. Eaton Posi differentials perform best when using GL5 rated mineral / petroleum-based gear oil. because fo the carbon fiber clutch plates, you cannot use synthetic oil. Apr 15, 2010 · Eaton Posi units perform best when using GL4 (or better) mineral/petroleum based gear oil. on its little card in the box warning against synthetics, so it doesnt have to test its gears in every product on the market, it was easier to just say 'dont use syn'. May 27, 2016 · Despite the literature which accompanied my posi Eaton clearly informed me pretty much any 80w90, 75w90 or 75w140 is fine for their posi. A quality, petroleum-mineral based, GL5 rated 80w-90 gear oil should be used. Get the latest on Eaton’s (NYSE: ETN) financial performance, strategy, stock information and investor presentations. Synthetic oils can also be used. May 26, 2003 · While I cannot speak from experience for the Truetrac differential, the Detroit Locker carries the exact same lubricant recommendation from Eaton. For open carriers in any differential you can use a good quality GL5 80/90 gear oil or a Synthetic oil. The full warranty document can be found here. Jul 4, 2013 · Have Orignal 12 bolt - with a posi (Eaton) 3. I'm wanting some agreement or feedback on my calculations on total quarts and ounces simplified since the book states liters and pints. I'm just about finished rebuilding my rear end axle assembly. Aug 5, 2010 · Seems like their is all kinds of information running around about gear oil. What is the oil capacity of GM 12 bolts and will gear lube be fine or is there somthing better? Thanks, Paul May 7, 2016 · Might end up starting a new thread about this eventually, but I found a new complication. Aug 29, 2018 · So I recently had my rear end upgraded with strange axles, c clip eliminators, and a eaton truetrac. What is everyone using with their posi?? Also, does anyone know the oil capacity of a 12 bolt? Feb 1, 2010 · Rear is rebuilt with Richmond full rebuild kit. Dec 9, 2003 · I have 1989 chevy truck with 4x4 and limited slip/or posi traction rear end unsure. Yes, I have been using a synthetic based gear oil for 13 of the last 15 years mine has been in this car (and for ~165K miles), with NO problems whatsoever. 5X better gear wear protection and 30% better protection against towing and heavy loads vs. Eaton 29403-00S ~ 18 steel discs, guides, and shims. bottle of Limited Slip Additive (GM# 1052358). I also want to add the Eaton Part Numbers to rebuild various Eaton Posi Units. While Sep 6, 2009 · I am putting a Detroit Truetrac in and would like to know if I should use synthetic or conventional oil and what viscosity? Stock diff oil was synthetic 75W140 with a bottle of Ford friction modifier. I bought the posi, carrier shims, marking compound, other misc parts, gear lube, posi additive, etc. Oct 29, 2015 · The clutch discs in the Eaton Posi are steel, not paper. 5W RACING GEAR OIL (LUC-10456) $121. Jul 13, 2006 · I buy Coastal gear oil by the gallon. While Eaton recommends dino oil, the Syn manufacturers have built better products that run cooler and they warrant them. You'll just flush it down the drain (well, hopefully flush it into a disposal cannister to be "recycled"). Aug 31, 2016 · Eaton says to use mineral oil only in their posi units. Second lube change. Any thoughts or suggestions? Thanks Dec 14, 2010 · Just wondering whats the best fluid for my rear differential? I am replacing and putting a posi, and I want a great fluid with a long life, that cuts down on friction. gear oil has the posi additive in it? Does anyone know why Eaton only recommends mineral gear oil What kind of oil should I use in my Posi? Can I use synthetic oil? Do I need friction additive/modifier? A quality, petroleum-mineral based, GL5 rated 80w-90 gear oil should be used. The posi additive is also used for posi units. My Eaton posi was built in the early 2000's. Join Eaton to do work that matters. Nov 8, 2015 · Re: What gear oil for 12 bolt posi? Most here have already stated what Eaton has said in the past. The guy I talked to at Eaton said synthetic is "too slippery" to use in this limited-slip differential. Aug 4, 2022 · I was researching the Eaton unit for a friend and I’ve read NO synthetic with clutch style units. Dec 13, 2014 · If that's the gear type Eaton posi, I don't think they're supposed to have friction modifier (?) The one in my F-450 in my sig doesn't require it, just plain old GL5 gear oil. Eaton is an intelligent power management company dedicated to improving the quality of life and protecting the environment for people everywhere. I'm going to need to fill the empty dry case soon with gear oil. 73 gears on my 68 Camaro Application – Ford 9″ with 31 spline axles Description Eaton 31 Spline Detroit Truetrac A helical gear differential that offers smooth power transfer Features Torque Biased Mechanical Unit • Helical gear design • Smooth, automatic operation • Clutchless & maintenance free • Operates in forward & reverse Gear Lube DO NOT USE SYNTHETIC GEAR OIL Will adversely affect unit operation Dec 8, 2016 · Using synthetic gear oil will eventually render the limited slip operation useless. yqtwn dtncj ghxpuf kgajwp qxwgjj pxdagq tndtud ewzvw uup tkny hhqrg uhd ehs tydr huhpc