Thank you for the help and the links. I appreciate it!Cecil14 wrote:Fill in your signature, that'll help us give you recommendations based on what you have.
Couple thoughts: first, grab your TSM from here http://oljeep.com/edge_parts_man.html. That will give you all the factory recommended fluids.
As far as engine oil...ugh. Everyone has their favorite brand/weight/chemical makeup/etc. I prefer Amsoil's ZRod oil. It's a high zinc oil that is supposed to help with flat tappet cams. 10w-30 is just fine for my motor. Bulltear also makes an oil a lot of people like, designed specifically around AMC engines. I probably wouldn't drop a lot of coin on synthetic oil in an old leaky engine. New build, sure. Synthetics tend to show every little gasket imperfection and will leak places a standard dino oil does not.
What transmission/t-case are you running? Each setup requires fluid unique to the components involved.
Power steering can go either of two ways: ATF or power steering fluid. Either is fine, but do not mix and match. If you're replacing the pump, then I would probably run ATF. Just be sure to flush everything out really well at that first fill.
Both of those pumps look fine? I believe you can also get a rebuild kit for your pump, or at least could at one time. I can't comment as to quality of the saginaw pumps, as I have not had one in a long time.
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It is a 360 V8 that is automatic.Cecil14 wrote:Auto or manual? If manual, 3 or 4 speed?
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Hello!Cecil14 wrote:If it's original, it'll be a TH400 transmission and a QuadraTrac t-case. I believe the TH400 uses Dextron 3? The TSM I linked above will give specifics, though. It's nothing special, should be available everywhere. The QT fluid is available from BJ's: http://www.bjsoffroad.com/Quadratrac-Fluid_p_1596.html.
BJs also has a number of other hard-to-find service items for the QT.
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Nice! Thank you! I greatly appreciate all of your time and advice!Cecil14 wrote:ATF has a nice reddish tint to it (assuming it's not burnt), while power steering fluid is more clear/brown if I remember. They're both relatively inexpensive, grab a bottle of both and compare with what you have now. Color, viscosity, smell, etc. I think you'll be able to get a pretty good idea which you have.
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Great way to blow up a QT. Use the fluid I linked above.candymancan wrote:Dexron 3 in the transfercase
The original '74-'79 Borg Warner 1309/1339 Quadratrac has nothing in common with the later New Process "Quadratracs" other than the name. ATF in a Borg Warner QT will kill it in no time, they require special fluid.candymancan wrote:How would dexron 3 blow up Qt unless this is some qt im unfamilier with. I only know the ones in ZJs that use a viscous coupler and use atf4 or dex3
I guess these ancient ones use open clutch packs vs sealed ones like in a viscous coupler ?
HeavyMetalThunder_81 wrote:The original '74-'79 Borg Warner 1309/1339 Quadratrac has nothing in common with the later New Process "Quadratracs" other than the name. ATF in a Borg Warner QT will kill it in no time, they require special fluid.candymancan wrote:How would dexron 3 blow up Qt unless this is some qt im unfamilier with. I only know the ones in ZJs that use a viscous coupler and use atf4 or dex3
I guess these ancient ones use open clutch packs vs sealed ones like in a viscous coupler ?
As for transmission fluid, any Dex III or above will work.
Oil, I like 15w-40 Mobil Delvac. The extra zinc in most diesel oils is beneficial to our flat tappet camshafts. It doesn't really get cold here so the heavy weight doesn't hurt anything.
Power Steering Fluid, I don't like ATF in my Saginaw power steering pumps. That is just personal preference, though. If it were me, I would find and fix the leak. Then I would flush all the fluid with fresh power steering fluid.
You're misreading, or maybe looking at something different. I'm looking at page 99 of the '77 Owner's manual from Tom Collin's website.Santeh wrote:Hello all!
Thanks again for all of the information and your thoughts!
I went with 10W-40 for the engine oil and ATF for the transmission/power steering. Yet I am taking the Jeep in hopefully soon to fix the oil and transmission leaks, as well as install a new power steering pump (I think I will get this one: http://www.rockauto.com/en/moreinfo.php ... 90&jsn=422). I have not bought anything yet, but I was going to get the TCL-1 for the transfer case.
As for my oil choice, the 20W-40 was something I got from the Jeeps owners manual yet I was surprised by the book stating that if driving at highway speeds one should avoid 10W-40. Thoughts?
Thank you again!
I have seen all of those weights available regularly for as long as I can remember? Not all are really pertinent, but certainly still available.Fast Eddie wrote:I agree Nograin! I just dug out my 1979 Jeep owners manual and it states:
Lowest temp Anticipated : Above + 40 deg F. SAE 10W-30, 20W-40, or 10W-40
Above 0 deg F. SAE 10W-30 or 10W-40
Below 0 deg F. SAE 5W-20 or 5W-30
Obviously some of these grades are not available today, but I think everyone gets the idea!! 10W-30 would be your best starting point at least in most states....
Hope this helps!!!
Oh, and I also get the idea of the added ZINC for Flat tappets, but that is critical for a flat tappet mechanical cam, should not have as big an issue on hydraulic cams...IMO