Gazelle
Well-Known Member
- Thread starter
- #1
This seems like a more appropriate thread for this discussion than the Purchasing thread.
I'm trying to decide upon waiting for the 2021 JLUR with "4:1 ROCK-TRAC HD FULL TIME 4WD SYS" and would like to know a few details to help with my decision. If the general concensus is that the Selec-Trac is weak or failure prone, I can save a bundle and look for a lightly used 19 or 20 JLUR rather than go with the 2021.
Firstly, I realize the front axles would include CV joints. I don't see that as a problem, per se, but would the axle otherwise be the same as the US Rubicon D44's (M210 Wide in front and M220 Wide in rear)? Or, will JEEP use the EU axles, M210 & M220 - both narrow?
Secondly, I assume the "4:1 ROCK-TRAC HD FULL TIME 4WD SYS" is a US Selec-Trac (MP3022), but with modified Lo range gearing. Have people seen the clutches wear out in these transfer cases when used appropriately? Will the clutches wear when "locked" into 4wd part time? Apparently, an internal shift fork applies pressure on the clutch stack to lock these transfer cases when in part time mode. I have seen zero complaints on this forum about the Selec-Trac, but perhaps people using it would not be pushing their JEEPS as hard as those with a North America Rock Trac transfer case?
Comments and conjecture appreciated.
My list of sources so far:
https://www.jlwranglerforums.com/forum/threads/jl-in-europe.2754/post-798709
https://www.crownautomotive.net/NP241-Transfer-Case-Parts.html
I'm trying to decide upon waiting for the 2021 JLUR with "4:1 ROCK-TRAC HD FULL TIME 4WD SYS" and would like to know a few details to help with my decision. If the general concensus is that the Selec-Trac is weak or failure prone, I can save a bundle and look for a lightly used 19 or 20 JLUR rather than go with the 2021.
Firstly, I realize the front axles would include CV joints. I don't see that as a problem, per se, but would the axle otherwise be the same as the US Rubicon D44's (M210 Wide in front and M220 Wide in rear)? Or, will JEEP use the EU axles, M210 & M220 - both narrow?
Secondly, I assume the "4:1 ROCK-TRAC HD FULL TIME 4WD SYS" is a US Selec-Trac (MP3022), but with modified Lo range gearing. Have people seen the clutches wear out in these transfer cases when used appropriately? Will the clutches wear when "locked" into 4wd part time? Apparently, an internal shift fork applies pressure on the clutch stack to lock these transfer cases when in part time mode. I have seen zero complaints on this forum about the Selec-Trac, but perhaps people using it would not be pushing their JEEPS as hard as those with a North America Rock Trac transfer case?
Comments and conjecture appreciated.
My list of sources so far:
https://www.jlwranglerforums.com/forum/threads/jl-in-europe.2754/post-798709
https://www.crownautomotive.net/NP241-Transfer-Case-Parts.html
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