This is a practical demonstration of how to inspect a Chrysler 9 1/4” Trac Lok limited slip differential in a 1998 Dodge Ram 1500. An axle tube seal is replaced, we adjust ring gear backlash, and we show how the gear contact pattern changes as backlash is reduced. Part 2 is here
https://youtu.be/yD2rqjCt9mU
This demonstration is amateur effort, done for entertainment purposes only. It is not a complete review of how to do this procedure safely. Automotive repair is inherently dangerous, with risk to personal safety and risks of causing damage. The information here is offered in good faith, for free, but with no guarantee as to accuracy or safety. Never rely on one source for critical information, and always review the dealer repair manuals. Do not attempt this kind of repair unless you are prepared to accept all risks of failure. Any misadventure you encounter if you decide to accept the risk of DIY repair is your responsibility.
Music at the end is River Meditation by Audionautix, licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
Artist: http://audionautix.com/
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I don't say this often, but damn I love this video. Nice work!
that retaining clip you said fails in these do you have a part number for them ?
Man i really appreciate your videos. I ran into the same issue excpet it sounded like a massive grenade went off under the truck. Im doing the fix on my own and had no idea of a diff system like that from dodge. Now i know what to look for and what the parts are called. Thanks for the videos
I've seen people having problems trying to get the right pattern in the right place and sekecting shims for the correct amount play when both sides mesh together.
I don't think i would want to mess with so many variables lol.
ill run away ha ha 😀
Hello Dave, great video. Anxiously awaiting the next part! I bought the same truck new in 1998; it's still my daily driver. We seem to run into the same issues around the same time. Two years ago I replaced the rear axle seals for the first time. But I HATE that 9.25" rear axle and will never buy another vehicle that uses it; It's the only part of this truck that's been a headache over the past 23 years and 170,000 miles. Pinion bearings went at 37k mikes. Chrysler covered it under warranty,. They went again at 70k miles. Chrysler told me to pound sand. I paid for that one. Then again at around 110k miles. All done by different dealerships in different parts of the country. I too have the factory trac-loc, but with 3.92 gears. The axle has always made a loud BANG when shifted into reverse since the day it was new. Multiple dealers dismissed it as normal, as did a driveline shop. Did it the same after both pinion bearing replacements. It's so loud, its embarrassing. I've checked it myself, and the play is between the spider and side gears, always has been. My trac-loc started chattering at about 110k miles, only when going around the first few turns while accelerating after driving on the highway. When new, it could transfer a significant amount of power to the slipping wheel. Now, not so much. I know its just worn out. Replacing the Trac-loc is a project that I know is coming, hopefully way down the road, but I'm glad to see you do it first. If you ever need any info from the factory service manual, let me know–I have the printed book. Thanks again!
Great share , Those are good solid Diff's . ENJOYED !!
Mine was whining on coast and LS didn't work. Found play in pinion so I installed all new bearings and upgraded to an Eaton truetrac. The LS parts were on the bottom. It was close to grenading.
Finally ,dodge 🙂
Never seen that design before. I like it. Thanks for another great video.