axle fluids

_UnLiMiTeD_ · **Posted:** Mon Oct 15, 2007 8:32 pm

Do the front and rear axles take the same gear lube?

sleeve84028 · **Posted:** Tue Oct 16, 2007 7:37 am

I would use 75W-140 in both just to be safe... You can use the standard 75w-90 in the rear if you don't do a lot of towing

Wasatch15 · **Joined:** Wed Jul 13, 2005 7:52 am **Posts:** 242

In the 2002 Jeep service manual it lists 75W-140 for both front and rear open differentials

Albert · **Posted:** Tue Oct 16, 2007 7:45 am

If you have trac-loc you need to add a little "friction modifier" to the rear diff.

_UnLiMiTeD_ · **Posted:** Fri Nov 02, 2007 4:31 pm

ok re opening this because now i have the money to gather my materials finally. so any more opions on what would be a better weighht to use? being as its winter now and i dont tow, does the 75w-90 sound good? what brand should i go with?

BeepBeepJeepJeep · **Posted:** Fri Nov 02, 2007 6:26 pm

I use 75-140 in the front and the rear. After first rebuilding my differential (and installing a DTT) and using 75-90 my dif would get so hot I could smell the gear lube from inside the truck.

Switching to 75-140 has made that disappear.

dgeist · **Posted:** Fri Nov 02, 2007 6:35 pm

The 04-06 shop manual says 80w90 for the front and 75w90 or 75w140 for the rear depending on if you do heavy towing or off-roading. Don't know why it says 80w90 on the first one, that could just be a typo. Anyone know if there's a particular reason why they don't say to use the 140 in the front?

sleeve84028 · **Posted:** Fri Nov 02, 2007 6:36 pm

_UnLiMiTeD_ wrote:

ok re opening this because now i have the money to gather my materials finally. so any more opions on what would be a better weighht to use? being as its winter now and i dont tow, does the 75w-90 sound good? what brand should i go with?

If you are planning on an OTC (over the counter purchase) than get a quality synthetic. Mobil 1 if you like or another brand will be fine... 75-90 will be fine. Now go out there and get smelly!

_UnLiMiTeD_ · **Posted:** Fri Nov 02, 2007 6:47 pm

yes it will be otc because i get 60% off parts lol. I was planning on doing mobile 1 synthetic for all this time around

sleeve84028 · **Posted:** Fri Nov 02, 2007 10:10 pm

That is a fine plan then... I use Mobil1 as well. Works pretty OK as long as you still change it under the recommended intervals

Rush345 · **Posted:** Sat Nov 03, 2007 1:25 am

I hope these help you you will find a large amount of options, I do this to allow you to make your own desicions in my case with a 2002 Liberty Sport 4x4 IK found that front and rear diffs required different weight oils I hope it answerer your questions. if not just PM me and I'll try to comply.

2004 JEEP LIBERTY 3.7L 6-cyl Engine Code K

FILTERS
Oil Filter......... EAO34 AMSOIL Ea Oil Filter
Oil Filter......... 51516 WIX 51516 Oil Filter (O)
Oil Vapor Filter..... N/A
Air Filter......... EAA201 Absolute Efficiency Air Filter
Air Filter......... 42329 WIX 42329 Air Filter (S)
Fuel Filter....... N/S
Trans Filter..... 58843 [1]
Trans Filter..... 58846 [2]
Cabin Filter..... N/A

1. 4WD - Spin - on + pan filter together in one kit
2. 2WD - Spin - on + pan filter together in one kit

NGK PLUGS & WIRE SETS
Plug................. IXIRIDIUM ZFR6FIX-11 NGK6441
Plug................. VPOWER ZFR6F-11G # NGK6987

TRICO WIPER BLADES
Blade Class Driver Passenger Rear
NEOFORM T16190 T16190
NEOFORM T16190 T16190
NEOFORM T16190 T16190
EXACTFIT T191 T191
EXACTFIT T191 T191
EXACTFIT T191 T191
WINTER T37190 T37190
WINTER T37190 T37190
WINTER T37190 T37190
OKTANE 18 inch 18 inch

LUBRICANTS & FLUIDS
Engine Oil
Grade 1......API*
SAE 0W-30 Synthetic Signature Series Oil
SAE 5W-30 Synthetic Motor Oil
SAE 5W-30 XL Synthetic Motor Oil
Above 0°F......10W-30
Below 100°F......5W-30[1]
Manual Transmission,.....GLS[2]
AMSOIL Synthetic Synchromesh Transmission Fluid
Automatic Transmission.....AP4
Synthetic Automatic Transmission Fluid
Differential, Front .....GL-5[3]
All Temps......75W-140
Severe Gear 75W-140
SAE 80W-140 Synthetic Gear Lube
Controlled Slip Differential, Rear 8 1/4.....GL-5*[4][5]
All Temps......75W-90
Severe Gear 75W-90
Standard Differential, Rear 8 1/4 W/ TT.....GL-5[6]
All Temps......75W-140
Severe Gear 75W-140
SAE 80W-140 Synthetic Gear Lube
Standard Differential, Rear 8 1/4 W/O TT.....GL-5[6]
All Temps......75W-90
Severe Gear 75W-90
SAE 75W-90 Synthetic Gear Lube
Severe Gear 75W-110
Standard Differential, Rear W/ Towing package.....GL-5[7]
All Temps......75W-140
Severe Gear 75W-140
SAE 80W-140 Synthetic Gear Lube
Transfer Case,.....AP4
Synthetic Automatic Transmission Fluid
Fluids
Power Steering Fluid.....PS
Brake Fluid.....HB
Clutch Fluid.....HB

1. SAE 5W-30 is preferred.
2. GLS is a special gear lube, Mopar part no. 04874464.
3. Synthetic based oil.
4. CS IDENTIFICATION: Metal tag atached to rear cover
stamped W/ "Use Limited-Slip DIFF Lube only".
5. All W/ Trailer Tow PKG use synthetic GL-5 oil SAE 75W-140.
Mopar part no. 04874469. Trak-Lok axles require Mopar
limited slip additive 04318060.
6. Trak-Lok axles require Mopar limited slip additive
limited slip additive 04318060.
7. Synthetic based oil.

CAPACITIES
Engine, with filter..........5.0 quarts
Cooling System, Initial Fill..........14.0 quarts
AMSOIL Antifreeze and Engine Coolant
Automatic Transmission, 4-Shallow Paneed Initial Fill..........4.0 quarts[1][2]
Automatic Transmission, 545RFE Initial Fill..........5.0 quarts[3][4]
Automatic Transmission, Total Fill
4 speed 45RFE..........14.0 quarts
4 speed 42RLE..........8.8 quarts
Manual Transmission, NV3550 4WD..........4.2 pints
Manual Transmission, NV1500..........4.9 pints
Manual Transmission, NV3550 2WD..........4.6 pints
Differential, Front..........2.5 pints[5]
Differential, with 8.25 RBI Rear..........4.2 pints
Differential, Front..........2.5 pints[5]
Differential, with 8.25 RBI Rear..........4.2 pints
Transfer Case,NV231..........3.0 pints
Transfer Case,NV242..........3.4 pints

1. With ENG at operating temperature, shift through all
gears. Check fluid level in NEUTRAL and add fluid
as needed.
2. DTC'S may be set , reset W/ DRB III, if necessary
3. With ENG at operating temperature, shift through all
gears. Check fluid level in NEUTRAL and add fluid
as needed.
4. DTC'S may be set , reset W/ DRB III, if necessary
5. Fill no higher than 1/2" below fill plug opening.

TORQUES
Oil Drain Plug.....25 ft-lbs
Transfer case
Fill Plug.....15-25 ft-lbs
Drain Plug.....15-25 ft-lbs
Manual Transmission NV1500 5-SPD
Fill Plug.....25 ft-lbs
Drain Plug.....25 ft-lbs
Manual Transmission NV3550 5-SPD
Fill Plug.....14-20 ft-lbs
Drain Plug.....14-20 ft-lbs

SERVICE INTERVAL
AMSOIL Product Recommendation and Drain Interval Guide (g1490)

OTHER TOP QUALITY PRODUCTS
Mothers® Car Care Appearance Products
By-Pass Oil Filters

As in my pratice I allow my Amsoil customers to make they're own dessions I'll advise if requested but I am not a big fan of a hard sell I would rather give freindly advise. But I believe it's your hard earned money so let you decide if I see a real problem i will advise but it's your money and telling you how to spend it is just wrong. But as a L.O.S.T. brother I'm here to help.

_UnLiMiTeD_ · **Posted:** Sat Nov 03, 2007 1:31 am

thank you very much for that info, i needed that part number for the oil filter actually, been trying to find it. I have copied and pasted that into a word pad so when i do have the cash to go amsoil i will know what i need now and how much of it too,

Though what does pints mean? like how much diff fluid should i buy?

kj in a tight spot · **Posted:** Sat Nov 03, 2007 1:42 am

Check out RP as well they make some great fluids and I run em in everything!! Smooth as silk in the tranny when shiftin, and the diffs are nice and happy, as well as the engine, with RP flowin thru em

_UnLiMiTeD_ · **Posted:** Sat Nov 03, 2007 1:56 am

RP, thats a new one to me, i look into it. For this one its going to be mobile one, budget limits me lol.

So heres the break down:

Engine oil, mobil 1 synthetic 5w-30 with a wix oil filter

Front diff synthetic 75w-140 1.2 litres

Rear diff synthetic 75w-90 2 litres

New pcv valve

Ac delco Platinum spark plugs.

And a wix air filter

I will have the shop check the transfer case and tranny and see what they think, if they think it should be done then that will be done also.

This sums up my tune up, sound about right?

Rush345 · **Posted:** Sat Nov 03, 2007 2:18 am

_UnLiMiTeD_ wrote:

thank you very much for that info, i needed that part number for the oil filter actually, been trying to find it. I have copied and pasted that into a word pad so when i do have the cash to go amsoil i will know what i need now and how much of it too,

Though what does pints mean? like how much diff fluid should i buy?

If you wish now that you have all the specifcations just PM me. I will be happy to help. Infact I recently coresponed with another L.O.S.T. member after some disscusion I sent him the equilivant of "WAR AND PEACE" of information. The Vehical Specification as I have already supplied , but each and every item listed on the spec sheet with my AMSOIL actual cost. I will admit this can lead to sensory overload. But I'm a firm believer in there is no such thing as too much information. I appoligise to my bretheren for Hi-Jacking this thead for Advertising a product I beg your forgiveness.
Thank-You

LEAD :shock:

FOLLOW

OR

GET

OUTA

THE

WAY

kj in a tight spot · **Posted:** Sat Nov 03, 2007 2:27 am

RP=Royal Purple for yall who dont know what in the hell Im talkin bout...can be had at any PepBoys or Napa Auto Parts...

_UnLiMiTeD_ · **Posted:** Sat Nov 03, 2007 2:54 am

royal purple apparently performed poorly in the tortue tests for the diffs though. And trust me rush, when i have the money i will go amsoil

kj in a tight spot · **Posted:** Sat Nov 03, 2007 3:44 am

_UnLiMiTeD_ wrote:

royal purple apparently performed poorly in the tortue tests for the diffs though. And trust me rush, when i have the money i will go amsoil

Thats BS, RP does fine. Ive been using it for years w/o incident...

sleeve84028 · **Posted:** Sat Nov 03, 2007 9:57 am

_UnLiMiTeD_ wrote:

Engine oil, mobil 1 synthetic 5w-30 with a wix oil filter

New pcv valve

Ac delco Platinum spark plugs.

And a wix air filter

sound about right?

The only thing I'd recommed different would be the spark plugs. Stick with the factory original plugs if you can. There's been postings on people trying different plugs with limited success. I believe the stock plugs are just an NKG copper plug so there shouldn't be too much of a price change.

JJsTJ · **Posted:** Sat Nov 03, 2007 10:22 am

FWIW, 11 gear lubes outperformed royal purple in a recent independant white paper study of gear oils.

Mobil 1 gear oil was 2nd to Amsoil Severe Gear in those same tests so as gear oils go it is pretty decent though its total score (Mobil = 71) was almost double that of Amsoil (38 ) (lower score equals better overall performance).

If you want to read the ton of info on the testing:
http://www.lostjeeps.com/forum/phpBB3/vie ... hp?t=24799

http://www.amsoil.com/lit/g2457.pdf

axle fluids

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