Passenger side cv shaft is loose at the housing on transmission

Yes. That would be the inner cv joint but the entire cv shaft should be replaced. The labor is the same if you are just replacing a boot, so most all cv joints are serviced this way now. The shaft generally costs under $100 and may take a couple hours to replace. There is a seal that should also be replaced at the same time. Left and right sides are different.

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Well, not being familiar with your vehicle I can recommend this. The shaft seal is seated in the transmission where the input shaft enters the transmission.

If the seal part is a round metal ring with a rubber inner seal, then in all likelyhood it is pressed into the transmission.

Now if you think you can pull the seal out after you remove the CV drive shaft - meaning do you have enough room to get up in there to pop it out, then yes you can do it without removing the transmission.

On the other hand if the seal is not accessable to pop out then you will probablly have to remove the transmission which is by no means an easy job. Might want to take a look on youtube and do a search for CV inner shaft seal removal for your particular vehicle or one similar. You will probably find the answer there.

Hope this info helps.

Majority of older MONTERO' s are four wheel drives which means you have two more locations of possible Leaks, called output shaft seals. they are located ( from front of vehicle ) one on each side of transmission. left and right side. just follow the C.V. Joint shafts to where they enter transmission . in order to replace seals removal of C.V. SHAFTS is REQUIRED . verify this is where leaks starts at by cleaning area with spray degreaser and wiping area dry. .. secure vehicle with emergency BRAKE ON.. ALSO CHOCK WHEELS TO PREVENT VEHICLE FROM ACCIDENTALLY MOVING. SAFETY IS A PRIORITY !!! ALLOW ENGINE TO IDLE IN PARK. you should be able to view trans where shafts are installed and check for seepage. if you have small leak at idle and no motion imagine when your car is in motion, it probably rains fluid.

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did the spring clip fall off the end of the joint

if you can " waggle " a CV joint

bearing part or bearing housing of the drive shaft joint worn
..replace the cv

That is a very strong possibility, however I think that your husband would have made certan that the seal was seated propperly. So all you can do is change the seal again. Make sure you inspect the cv shaft where the seal rides for any vissable damage sharp cut marks, dents or scrapes. Also lubricate the in side of the seal with some grease upon installation. Take care when slidding the cv shaft into place so no damage can occure to the seal. Good Luck, From Ernie @ RedDeer, Alberta, Canada.

the axle shaft seal might have been damaged upon dissambly or reassembly or the attaching clip might have not seated properly causing the axle to not seat properly in the transmission also the axle seal surface if it was a replacement shaft might not be large enough to seal properly.

I cannot see it, but I am guessing that you need to replace your axle seal. To do this,you have to pull your CV shaft out. Remove the tire, remove the caliper from the top of the rotor. Using a hammer on the back, remove the rotor. Take off the spindle (axle) nut, separate the axle (CV shaft) from the hub. Replace seal. It should pop right out. Good luck!

The CV joint has nothing to do with the brakes you probably put something back wrong because you had to remove the Caliper and Brake pads.
The CV joint you probably never replaced the C clip which keeps the shaft spline from going out into the hub. The CV joint also has to be synchronized. Which means they have to line up on both sides. Most will mark the shaft first, before removing.

Hi Caarl
The lateral movement in the output shaft is normal and nothing to worry about.