Jeep cj7 drivetrain fluid change intervals - JeepForum.com
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post #1 of 11 Old 03-07-2020, 03:39 PM Thread Starter
agear
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Jeep cj7 drivetrain fluid change intervals

I have an 84 cj7 and need to know the fluid change intervals for the drivetrain ?


1984 jeep cj7, 258 I6, rebuilt T176,rebuilt Dana 300, amc 20 , dana 30, 4.10's Trac-lok in rear , 4.10's detroit soft locker in dana 30, 2.5 inch bds suspension lift, 1 inch polyurethan body mount lift. Line ex. weber carburetor. factory tach. factory clock ,oem replacement speedomter cluster, and oil pressure gauge, factory volt gauge.
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post #2 of 11 Old 03-07-2020, 06:34 PM
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I have an 84 cj7 and need to know the fluid change intervals for the drivetrain ?
Did you download the TSM. I think Matt posted the link for you in one of your threads.

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post #3 of 11 Old 03-07-2020, 07:20 PM Thread Starter
agear
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Quote:
Originally Posted by agear View Post
I have an 84 cj7 and need to know the fluid change intervals for the drivetrain ?
Did you download the TSM. I think Matt posted the link for you in one of your threads.
I think I remember now. I'll check

1984 jeep cj7, 258 I6, rebuilt T176,rebuilt Dana 300, amc 20 , dana 30, 4.10's Trac-lok in rear , 4.10's detroit soft locker in dana 30, 2.5 inch bds suspension lift, 1 inch polyurethan body mount lift. Line ex. weber carburetor. factory tach. factory clock ,oem replacement speedomter cluster, and oil pressure gauge, factory volt gauge.
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post #4 of 11 Old 03-08-2020, 11:39 AM
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Modern fluids, modern intervals.
You can look up just about any car's fluid interval and apply that to your Jeep. Most are about 100,000 miles on transmission, T case, and diffs. Auto transmissions are in the 30 to 50K range (full flush), shorter if you're beating on it or towing.

Remember, always inspect the levels regularly.

If you are wheeling and things get wet, or you find moisture build up during your level checks, you will have to modify your interval.


Don't forget to service your spindle bearings as well.

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post #5 of 11 Old 03-08-2020, 11:45 AM Thread Starter
agear
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Originally Posted by jeepdaddy2000 View Post
Modern fluids, modern intervals.
You can look up just about any car's fluid interval and apply that to your Jeep. Most are about 100,000 miles on transmission, T case, and diffs. Auto transmissions are in the 30 to 50K range (full flush), shorter if you're beating on it or towing.

Remember, always inspect the levels regularly.

If you are wheeling and things get wet, or you find moisture build up during your level checks, you will have to modify your interval.


Don't forget to service your spindle bearings as well.
Interesting, are you a mechanic in the army ?

1984 jeep cj7, 258 I6, rebuilt T176,rebuilt Dana 300, amc 20 , dana 30, 4.10's Trac-lok in rear , 4.10's detroit soft locker in dana 30, 2.5 inch bds suspension lift, 1 inch polyurethan body mount lift. Line ex. weber carburetor. factory tach. factory clock ,oem replacement speedomter cluster, and oil pressure gauge, factory volt gauge.
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post #6 of 11 Old 03-08-2020, 01:28 PM
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I have an 84 cj7 and need to know the fluid change intervals for the drivetrain ?
Unless leaking or you do alot of water crossing, you shouldn't need to check your levels but once a year. Fluid checks should be done along with wheel bearing checks once a year as preventive maintenance and and after trips that you've crossed water. Check all your vents too to make sure they aren't clogged, broken or missing too. As for changing the fluids, as long as you have fluid and it's clean you shouldn't have to change them but maybe every 5 years or so. Just top them off.
Shawn

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post #7 of 11 Old 03-08-2020, 07:19 PM
LumpyGrits
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Ck the levels with each engine oil change.
Takes a whole 5 minutes to do so, and can save lots of $$$$.
Lube the ball joints every other oil change unless you play in the water
Gary

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post #8 of 11 Old 03-08-2020, 10:18 PM
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Interesting, are you a mechanic in the army ?
I spent almost ten years as a mechanic in a local 4X4 shop. I did manage to put much of that knowledge to use on various deployments, but only in an informal role (retired 11Z50).


Most (of our era vic's) TMs were printed before lubricant quality was refined to the level it is today. I can still remember popping valve covers all the way into the mid 90's literally caked with sludge and gummy 90WT filling various differentials.



Barring leakage or contamination, box fluids should last in an early CJ the same length of time as a modern Excursion, Suburban, or the like.

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post #9 of 11 Old 03-09-2020, 02:45 AM Thread Starter
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Ck the levels with each engine oil change.
Takes a whole 5 minutes to do so, and can save lots of $$$$.
Lube the ball joints every other oil change unless you play in the water
Gary
Thanks

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Quote:
Originally Posted by agear View Post
Interesting, are you a mechanic in the army ?
I spent almost ten years as a mechanic in a local 4X4 shop. I did manage to put much of that knowledge to use on various deployments, but only in an informal role (retired 11Z50).


Most (of our era vic's) TMs were printed before lubricant quality was refined to the level it is today. I can still remember popping valve covers all the way into the mid 90's literally caked with sludge and gummy 90WT filling various differentials.



Barring leakage or contamination, box fluids should last in an early CJ the same length of time as a modern Excursion, Suburban, or the like.
Cool thank you !

1984 jeep cj7, 258 I6, rebuilt T176,rebuilt Dana 300, amc 20 , dana 30, 4.10's Trac-lok in rear , 4.10's detroit soft locker in dana 30, 2.5 inch bds suspension lift, 1 inch polyurethan body mount lift. Line ex. weber carburetor. factory tach. factory clock ,oem replacement speedomter cluster, and oil pressure gauge, factory volt gauge.
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post #10 of 11 Old 03-09-2020, 12:37 PM
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I spent almost ten years as a mechanic in a local 4X4 shop. I did manage to put much of that knowledge to use on various deployments, but only in an informal role (retired 11Z50).
11B48 & 11Z50
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post #11 of 11 Old 03-09-2020, 06:51 PM
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11B48 & 11Z50
Serves as a Master Resilience Trainer / Instructor; provides resilience training for over # (platoon, company, battalion, group) Soldiers, NCOs, and Officers annually; develops, maintains, and updates course material; conducts training and evaluations of all (platoon, company, battalion, group) members for the purpose of resilience skills education and training, a component of the Army's Comprehensive Fitness Program; ensures accountability and positive control of course materials and maintains accountability of computers and related equipment valued in excess of $0.0; responsible for the health, welfare, and supervision of x number of Soldiers and NCOs.

Welcome home!
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