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It won't come out!


rocmoc
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OK, I need team help! I am finally replacing the original driveline with the replacement. It won't come out of the trans. I have removed & installed axles on this type of trans before but this one won't come out. I know about the clip and how it is suppose to come out with a couple of screwdrivers and a yank. Any ideas? If not I am scheduled to take my Trooper to a Driveline Shop in Tucson on Tues. HELP!

rocmoc n AZ/Mexico

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OK, I need team help! I am finally replacing the original driveline with the replacement. It won't come out of the trans. I have removed & installed axles on this type of trans before but this one won't come out. I know about the clip and how it is suppose to come out with a couple of screwdrivers and a yank. Any ideas? If not I am scheduled to take my Trooper to a Driveline Shop in Tucson on Tues. HELP!

rocmoc n AZ/Mexico

When I had the Trooper I got pretty good at changing it. I also had the welded on skid plate so there was no access until

I cut a few access holes in it.

But the trick I used and it worked quite well was I would drive my quad up behind it and get the winch attached to the drive line and it

would pull right off.

Getting the new one on takes some work also, that is where the access holes in the skid plate come into play.

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Thanks Jimmy. I have removed the place entirely and am going to redo the installation of the plate.

Kinarfi, I will try to take pics. It maybe time for me to lower the diff like Flatbed. Then I could get the diff our of the way and deal with just the driveline.

rocmoc n AZ/Mexico

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Today I popped the axles out of the diff. Pulled the diff and removed the telescoping portion of the driveline. Pulling with a come-along the first pull snapped a single wrap of tie-down. Second pull snapped a double wrap of tie-down. Third pull was with a bolt thu the U-joint with chain to the come-along, nothing. So I soaked the end with penetrating oil. Back down the come-along and soaked it again. Really bad design as the end of the trans shift is exposed to the elements. I sure the clip-ring rusted in-place. I will try once more and off to the trans shop. At least they will have a super easy access to the remaining portion of shaft. Each pull was also assisted with a super long bar. The new driveline is correctly designed to ensure that the clip will not rust. Bummer!

I will lower the diff since everything is removed.

I am taking pics!

rocmoc n AZ/Mexico

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I WON! Let it soak for a couple of hours, put a good pull on it and out it came. Did not have to even use the bar. I have to say, the brakes were not enough to hold the Trooper in place. It just slide on the ground. I put a 2X6 between the rear of the Trooper and the hitch of my Truck. I was using the hitch on the rear of my Truck as the other pulling point. Anyway it is out and the new CV type driveline is in. Diff is still out so I will take another couple of pic before I reinstall the diff. Decided I already have too many irons in the fire to and more.

rocmoc n AZ/Mexico

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My driveline has been making noise even back when it was still in warranty. So they replaced it under the warranty. I just have not gotten around to changing it, playing a form of Russian Roulette. I figure with the new bigger tires I was just asking for trouble so finally changed it. The noise has been getting louder and louder. Both U-joints were still firmly installed but both had rough motion when worked by hand. Feels like the needle bearings are dry.

rocmoc n AZ/Mexico

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Lowering the diff. I am looking at a building a link that will bolt into the present mount locations and extend down to the new location instead of cutting out the old. I will update as I work thu the process with pics. The new links will have to be able to take the torque. Just now in the thought process.

rocmoc n AZ/Mexico

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rocmoc, Just remember that the torque is comming from two different directions, both the axels and the input shaft. The main torque by far being the axels but the other needs to be allowed for. I figure you are already aware of this but just just in case your like me and have it dawn on you when your half done, I thought I would throw it out. I lowered mine to be about 3/4" below the underside of the frame. I had to make a good solid skid plate under it as it can take a more of a direct hit being lower. Going an extra 3/4" below ithe frame gives me an extra 3/4" of clearance except at the dif. It also gives me an extra 3/4" before I hit the fender.

Good luck with the changeover

Lenny

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Thanks Lenny! Did you or Flatbed put any rubber washers in the new install to allow for flexing or bolt directly?

rocmoc n AZ/Mexico

I bolted mine directly. One other thing I forgot to mention is how you run the drive shaft to the dif. You have two choices. One is to run it like a stretched out "Z" or in other words the first bend being x degrees one way and the 2nd being bent the opposit direction x degrees. This is what is necessary if the output shaft of the trans and the input shaft of the diff are parellel. The second way which is better IMO is to run it as an arc. In other words, the first bend is Y degrees and the second bend is in the same dirction another Y degrees, thus like an continuing arc. In this scenario you must mount the dif so the input shaft points upwards towards the output of the trans. Doing it this way the angles at the cv joints themselves is less for both joints thus a cleaner drive train design. If you do it this way, measure the distance horzontially between the output and input shafts and their vertical difference. Draw it out to scale and place your new cv shaft over it. This way you can see exactly the angle up you want to put the dif. You are looking for the two cv angles to be close to equal.

Your doing this right. You are patient and wait for others to find the right approach and quarks then get it right the first time. Now if your like flatbed, you just know cars and are good to dig right in. You could be like me, I'm hipper and impatient, thank goodness less then when I was younger, I just dig in thinking I know what I'm doing and then see what others are doing. You get pretty good at doing things when you do everything twice. Good pratice.

Lenny

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I was thinking about how you could put the dif in rubber and came up with the following thoughts, so I thought I would share them with you. As I think about rubber mounts for the dif, I'm not sure they would do much. The engine/trans is not on rubber but the cv shaft allows for vibration one direction and its ability to slide the other direction on the spleen connection should pretty much cancel out vibration to the dif. Tthe axels also have the same responses as they are mounted the same. If you use rubber mounts, you then need to consider rather they flex enough to over bend the axel cv joints. If they do you will have to lessen the 14 1/2" of wheel travel to allow for this.

Just thinking out loud.

Lenny

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I was thinking just rubber washers between the diff and the mount. The mount will be the same as exist but just lower. Still will have the bolts running thu the tab mounts on the tubing and thu the diff. Just two large metal washers with a rubber washer between them installed between the diff and the tab. I have seen other direct mounted metal surfaces that fatigued after time and cracked one of the pieces. The weak link in our setup is the diff itself. The aluminum case could fatigue & crack after time.

rocmoc n AZ/Mexico

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My vote would be no rubber, Mount the diff as solidly to the frame as possible, the diff needs to be solid so the CVs can transmit all the power in and out. If any thing moves any at all, it will wear, rubber will crumble and things will get loose, then sloppy. Also, the diff shouldn't be making any vibrations, noise either, but sometimes you can hear the gears working.

2 Cents

Jeff

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  • 2 weeks later...

I will get pics up.

Finally had to just put the diff back in. Too many things going on to deal with lowering it and my buddy with the mig has been sick. Not as important to me since I put the big rims & tires on with the increase in ground clearance. Anyway, took it for a test drive. The cracking, cyclical noise was the driveline. All quiet now! I knew I was running on borrowed time. Now I have to redo the skid plate. Since I have one of the early ones, we had to cut it off. I wil replace with something I can remove if necessary in the future.

rocmoc n AZ/Mexico

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