Bad vibration at 70-mph

[1962larksedan]

quote:Originally posted by bige

You should be able to replace the bearings without going through the whole set up routine. If you don't feel like doing it take it to a shop that does Jeeps they are very well versed in the DANA 44. However sounds like you have most of it apart already.

Remove the pinion yoke or at least loosen the bolt, pull the axles, remove the inspection cover, take out the carrier but make sure the bearing caps are marked to go back in the same place and orientation as they came out. Remove the yoke and with a soft hammer, or hammer and block of wood on the pinion with the nut on to protect the threads, tap out the pinion gear. The front bearing is not pressed on the back one is. Be mindful of all shims and make sure they go back where they came from. There are shims under the race of the inside bearing and they will get dinged removing the race but that's OK. The pre-load shims should stay on the pinion when you remove it just put them back where they were when you assemble. Torque the nut and the washer to 140-180 ft pounds with the new bearings and races and re-assemble the rest. Easier than it sounds.

ErnieR


Best so far 15.065 @ 91.84 MPH Island Dragway Great Meadows NJ Summer 2009.

Dana44 was quite the prostitute: it was under many a car/truck-------including Isuzu Rodeos/Honda Passports as well as Nissan Titans. []

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Borrowed Bams50's sigline here:

"Do they all not, by mere virtue of having survived as relics of a bygone era, amass a level of respect perhaps not accorded to them when they were new?"

[64studeavanti]

this project may need to go on hold for a while. My daughter just wrecked her car - 2003 Saturn. Unfortunately, she only has collision on her insurance policy. We are awaiting an claim for un-inusured drivers, but that is dragging along. so - my efforts may go to putting a running Saturn together instead of My Stude (sigh).

[StudeRich]

quote:Originally posted by 64studeavanti

Unfortunately, she only has collision on her insurance policy.

I take it you mean she only has Liability Insurance, as no Insurance Co. will insure the car for collision, without insuring the driver for Pubic Liability and Property damage first. And if it were covered for collision, they would have repaired it.

Anyway I hope you get her car fixed OK, so you can get back to real cars again!

StudeRich

[64studeavanti]

StudeRich you are correct. I meant only Liability. The guy who hit her had no insurance and expired out of state plates. On top of that he is trying to play the whiplash game, claiming medical injuries. Fortunately, the insurance company seems to be on top of it.

[64studeavanti]

Finally got back to the Avanti today. Gave up my Bucs tickets to my daughter(bad idea - they finally won!) In any case, I can't get the pinion nut off. The book says it's torqued to 150 ft-lbs. Using an old torque wrench - almost broke it and the piece of angle iron I was using to replace the special tool to hold the yoke. Should I try heat? Other news, instead of the 3.73 that came from the factory - according to the build sheet, it has a 3.54. My only concern is that it may not have been set up correctly - so there may be more work involved. At least it's a tt. Napa has a kit that contains the carrier and pinion bearings and pinion seal for around $150.00 (I've been buying so many parts that they gave me a great deal. The kit number is DK28. Another interesting thing is that you can use a rag between the pinion and ring gear to remove the carrier from the housing. Found that tidbit on http://www.pirate4x4.com/forum/archi.../t-265622.html. Much to my suprise, it really works. Any way, thanks for all the suggestions so far, and I would appreciate any ideas on how to remove the pinion nut.

[sweetolbob]

I have a 1/2" impact wrench from Harbor Freight that puts out about 500 ft-lbs of torque. I've had it for about 15 years.

So far, no pinion nut has resisted it. They go for about $70 and I use it a lot. If you don't want to buy one, rent one. You need a socket the correct size also.

Bob

,

[64studeavanti]

I need an excuse to go to Harbor Freight. I'll try to finish it up next week. So far, the work is not out of reach of a good backyard mechanic.

[bige]

Beware of the kits. My bet is the carrier bearings will not be correct. If you can wait 'til tomorrow I'll get the numbers for the carrier bearings and you can check before you buy.

If you are going to re-set up the rear call me I have some things to make it easier. 201.738.0851 til 11 pm EST

Impact gun is the way to go on the pinion.

ErnieR

quote:Originally posted by 64studeavanti

Finally got back to the Avanti today. Gave up my Bucs tickets to my daughter(bad idea - they finally won!) In any case, I can't get the pinion nut off. The book says it's torqued to 150 ft-lbs. Using an old torque wrench - almost broke it and the piece of angle iron I was using to replace the special tool to hold the yoke. Should I try heat? Other news, instead of the 3.73 that came from the factory - according to the build sheet, it has a 3.54. My only concern is that it may not have been set up correctly - so there may be more work involved. At least it's a tt. Napa has a kit that contains the carrier and pinion bearings and pinion seal for around $150.00 (I've been buying so many parts that they gave me a great deal. The kit number is DK28. Another interesting thing is that you can use a rag between the pinion and ring gear to remove the carrier from the housing. Found that tidbit on http://www.pirate4x4.com/forum/archi.../t-265622.html. Much to my suprise, it really works. Any way, thanks for all the suggestions so far, and I would appreciate any ideas on how to remove the pinion nut.

Best so far 15.065 @ 91.84 MPH Island Dragway Great Meadows NJ Summer 2009.

[bige]

If you are getting carrier bearings a good number for the bearing is 4T-25577 NTN Race is 25523 Timken

I bought a kit also, 128.00 but the bearing's inside diameter is too big. Races were fine. Pinion bearings are OK too, just the carrier bearing was different.

If you end up with a new gearset you may have to buy a new yoke. All the sets I investigated were fewer splines than the original. Not a big deal $40 or so but this way you are sure to have all the pieces in place when you are ready to re-assemble.

ErnieR


Best so far 15.065 @ 91.84 MPH Island Dragway Great Meadows NJ Summer 2009.

[64studeavanti]

Just checked the carrier bearings from the kit. They eyeball out ok. the number is SKF 25577 the race is 25523. Don't know about the pinion bearings yet. I'll check this weekend when I have it out. Ernie, I may take you up on your offer. Let me see what I have when I get into it.

[64studeavanti]

Just checked the carrier bearings from the kit. They eyeball out ok. the number is SKF 25577 the race is 25523. Don't know about the pinion bearings yet. I'll check this weekend when I have it out. Ernie, I may take you up on your offer. Let me see what I have when I get into it.

[bige]

Bearings should be good...I should have gone to NAPA for my 1st set.

ErnieR

quote:Originally posted by 64studeavanti

Just checked the carrier bearings from the kit. They eyeball out ok. the number is SKF 25577 the race is 25523. Don't know about the pinion bearings yet. I'll check this weekend when I have it out. Ernie, I may take you up on your offer. Let me see what I have when I get into it.

Best so far 15.065 @ 91.84 MPH Island Dragway Great Meadows NJ Summer 2009.