vollr

Just a note that might help someone with the BA10 trans. My 1988 Jeep YJ Wrangler has a Peugeot BA10 5-speed transmission. It has more than 240,000 miles with NO problems. Having owned a couple of Peugeots, one with a BA10 transmission I learned early on that the specifications from Jeep call for gear lube in the transmission; this is different from what the manufacturer of the transmission recommends. The BA10 is supposed to use standard 30W engine oil. I've used synthetic engine oil in mine for about 30 years. Initially I tried gear lube as Jeep recommended but the transmission was very stiff and hard to shift so I went by the manufacturer's specifications about engine oil and substituted the best multigrade 10W40 or 5W30 or 5W40 synthetic engine oil I could find. No problem with shifting after that. I also knew that this is not a quick shifting transmission. You might compare it to an old bus transmission. Don't get in a hurry and mistreat it, keep the right oil in it, drive it normally, and it should last many years. I suspect that most of the bad rap this transmission got during all these years was because someone made a big mistake when translating the manufacturer's specifications. One more thing. If you are a rock climber the BA10 tail shaft housing is made of aluminum and will not hold up to that type of rough treatment.