Yes, thanks, good wrenching tips. I guess probably best not to blast the gears with brake cleaner, etc., as some do. Was wondering about using only RTV instead of a gasket.
post your latest differential fluid change
- Thread starter electrolover
- Start date
Type “ rear diff cover gasket” in the search function and you’ll get a whole bunch of opinions on it. 
Toyota Tacoma 2019
Rear only
Out: Schaeffer's Para synthetic 80W-140 from the January 2020 locker install
In: Amsoil SG 75W-110. SVT
Rear only
Out: Schaeffer's Para synthetic 80W-140 from the January 2020 locker install
In: Amsoil SG 75W-110. SVT
2013 F150 FX4 5.0
9.75 rear diff with E locker
Drained original fluid with 226k miles
New Fel Pro gasket and 3 quarts Master Pro 75W140
Bolts torqued to 33 ft lbs
9.75 rear diff with E locker
Drained original fluid with 226k miles
New Fel Pro gasket and 3 quarts Master Pro 75W140
Bolts torqued to 33 ft lbs
2018 Chev 3500, 32,500 kms, F & R diff. Pet-Can syn 80W140.
About twice as much went in than I drained out.
Under filling at the factory must be a GM thing to save money on fluids.
About twice as much went in than I drained out.
Under filling at the factory must be a GM thing to save money on fluids.
4WD
$50 site donor 2024
2017 Tahoe @ 42k
Front differential
Out: Delo XDM 75w90
In: Delo ESI 80w90
Check Delvac 1 in rear (clean magnet) … looked new at 25K
Change air filter with STP Premium (coated)
Change oil filter PF63E + quart of ST HD30
Techron in tank
Front differential
Out: Delo XDM 75w90
In: Delo ESI 80w90
Check Delvac 1 in rear (clean magnet) … looked new at 25K
Change air filter with STP Premium (coated)
Change oil filter PF63E + quart of ST HD30
Techron in tank
2010 Toyota Venza V6 AWD. Transfer case and rear differential:
Out: Unknown w/ unknown time and clicks
In: Royal Purple Max-Gear 75W90 GL5
155,918km on vehicle.
Out: Unknown w/ unknown time and clicks
In: Royal Purple Max-Gear 75W90 GL5
155,918km on vehicle.
Isuzu Trooper - no drain plug and the gas tank is inches from the back of the cover so I just used a miti-vac to suction out most of the fluid and refilled with Mystic conventional 80W90.
MityVac ROCKS!
Did the Ridgelines VTM4 rear end and differential this last weekend at 34K.
the Ridges AWD system creates a fair amount of detritus I see on the mags and has a severe service schedule of 7500-15-15 miles if driving in mountainous areas (approx its maintenance minder based) - which is exactly what I do - plus towing right up to its 5K limit.
the Ridges AWD system creates a fair amount of detritus I see on the mags and has a severe service schedule of 7500-15-15 miles if driving in mountainous areas (approx its maintenance minder based) - which is exactly what I do - plus towing right up to its 5K limit.
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- Nov 23, 2020
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2019 Tacoma front and rear diff
Drained Orielly master pro
75w90 40k miles on fluid
Looked extremely clean on rear clean as new on front
Refilled with exact same brand and weight will go 50k on next interval for rear prob not change front again for 100k as clean as it was
Contemplating using same gear oil for T case but for now will leave the magic toyota 75wt lv in there
Drained Orielly master pro
75w90 40k miles on fluid
Looked extremely clean on rear clean as new on front
Refilled with exact same brand and weight will go 50k on next interval for rear prob not change front again for 100k as clean as it was
Contemplating using same gear oil for T case but for now will leave the magic toyota 75wt lv in there
2008 Titan 4x4, Front Diff. Had the pinion seal replaced and did fluid at the same time. Mechanic said the old oil looked fine.
Out: unknown
In: Valvoline Synpower 75w90+ LG Gear
81,080 miles
Out: unknown
In: Valvoline Synpower 75w90+ LG Gear
81,080 miles
2008 Ford F150
Mileage 214, 322
Mileage on differential fluid: 57, 119
Out: Valvoline 75W140 Synthetic
In: Valvoline 75W140 Synthetic
Mileage 214, 322
Mileage on differential fluid: 57, 119
Out: Valvoline 75W140 Synthetic
In: Valvoline 75W140 Synthetic
A few weeks and 2500+ miles ago....
Chrysler 9.25. Unknown total mileage.
Out: Mobil 1 75w-90 with ~45K miles
In: Schaeffers 293 75w-90
Likely went too long, M1 had darkened significantly compared to 1/3 full bottle remaining on shelf.
Squeegeed out thick goop on bottom, weak magnet surrounded by ferrous sludge
replaced weak magnet with two neodymuim bars, 1.25 long .25 wide.
Wirewheeled and 'Oshpo'ed Diff cover and bolts.
Repainted with silver VHT I had on hand. Thought I had more flat black than I did and pressed for time, Rigged a cure oven to hold at 120f overnight.
No gasket, permatex gear oil rtv only, allowed 24 hours cure before filling with the Schaeffers.
Gonna flat black it soon, in place. as black has higher emissivity, radiates heat better, and I don't like it silver.
Quiet before, Quiet after.
Chrysler 9.25. Unknown total mileage.
Out: Mobil 1 75w-90 with ~45K miles
In: Schaeffers 293 75w-90
Likely went too long, M1 had darkened significantly compared to 1/3 full bottle remaining on shelf.
Squeegeed out thick goop on bottom, weak magnet surrounded by ferrous sludge
replaced weak magnet with two neodymuim bars, 1.25 long .25 wide.
Wirewheeled and 'Oshpo'ed Diff cover and bolts.
Repainted with silver VHT I had on hand. Thought I had more flat black than I did and pressed for time, Rigged a cure oven to hold at 120f overnight.
No gasket, permatex gear oil rtv only, allowed 24 hours cure before filling with the Schaeffers.
Gonna flat black it soon, in place. as black has higher emissivity, radiates heat better, and I don't like it silver.
Quiet before, Quiet after.
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