That's what I've always read and heard. It's normally what I use. I'm old enough to remember when it was still made from whale oil......man that stuff STUNK!
Rear end fluid ??
- Thread starter Bennoel 10
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abodyjoe
Well-Known Member
whatever its made from now still stanks.
Bennoel 10
Well-Known Member
Hard to distinguish old people odur from old gear oil made from whale oil. Lol.
I run the Ford stuff and 85W140 gear oil that Dr Diff recommended.
Now you hush up! lol
Scody21
Just send it
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Redline
Swepco
Torco
Amsoil
Lucas
Penn Grade
Driven
All about the same so pick your poison. With the amount that goes in the housing, and how often you have to change it. Might as well buy the good stuff….
Swepco
Torco
Amsoil
Lucas
Penn Grade
Driven
All about the same so pick your poison. With the amount that goes in the housing, and how often you have to change it. Might as well buy the good stuff….
340sFastback
Well-Known Member
I just sucked gear oil out of 8 3/4 and refilled with 75-90 synthetic with Limited Slip already in gear oil. Now I get mild popping around corners. Its an Auburn Pro cone sure grip. So now I have to suck some oil out and add limited slip additive. I usually use what ever additive local auto parts store has and its worked in the past.
Its a good idea to suck gear oil out and refill cheap preventative maintenance. Especially with the cone sure grips metal to metal surfaces.
Its a good idea to suck gear oil out and refill cheap preventative maintenance. Especially with the cone sure grips metal to metal surfaces.
BillGrissom
Well-Known Member
If a basic rear (not Sure-grip), I doubt the gear design in a straight-axle pickup has changed since the 1960's, so whatever Chrysler specs today "should work". I understand the OE oil into the 1960's was actual Whale Oil, as was Type A auto transmission fluid. It sure smelled like it when I replaced the axle bearings in my 1965 Chrysler.
Swinger 340
Well-Known Member
I think Ford has a better idea. I also use type "F" transmission fluid in my 727's.
I've never understood why people think they have to reinvent the wheel with everything. I've removed some rear axle covers that I KNOW had never been removed before and still hat the original conventional 80w90. Everything looked great. Why on EARTH do people want to stray from a formula that works? As long as there's no leak, you'll likely never have a problem. Don't wast your money.
RRR,
People use newer products because they are often better. There have been several iterations of Dexron trans fluid as an example. In post #13, I switched from mineral oil to synthetic & got the results noted. Elec ign v points is another example....
People use newer products because they are often better. There have been several iterations of Dexron trans fluid as an example. In post #13, I switched from mineral oil to synthetic & got the results noted. Elec ign v points is another example....
neilyoung561
Member
1/2 lucas oil H/D stabilizer and 1/2 75/90 is what I used. Used it in all my cars and trucks. Never had a issue and keeps the chatter away
Yet You missed Your opportunity in post#14, slacker......
In my race cars I use Redline 75W-85W full synthetic, but on the street just good ole 85w-140w gear lube for me.
Tom
Tom
Better than what? Something that lasts 60 plus years and is still good? Yeah, I'll take that same stuff, thanks.
Keep on keepin on.
neilyoung561
Member
There is so many different fluids out there that you could use. I don't think there is a lot of differences between them. Use what you think would work best. i recommend just changing the oil frequently so you could inspect for wear. Lets be honest the hole point of having a classic is to work on them and take pride in your ride
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