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Jeep Wrangler JK
JK General Discussion
Rear Aussie Locker
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<blockquote data-quote="DickensCPA" data-source="post: 463961" data-attributes="member: 25994"><p>I think I have a weird duck anyway. I bought a bluetooth OBDII and JSCAN and when I measured my tires to make that change (went from stock 18" rims to 17" rims w/ 33s) plus lowered my TPMS from 32 to 28 PSI - I lost my speedo and it started popping CELs all beginning with "U" letting me know I had a connection error. I had to play with it forever and put everything back to stock and all the CELs went away and I got my speedo back.</p><p></p><p>TBH, when I checked my speedo against GPS it appeared to be spot on. I guess there's just not enough difference between the stock 255/70/18 and 285/70/17 which equates to about .65" and the stockers were brand spanking new with about 32 miles on them and now my 33s have about 30,000 miles on them. Plus I run slightly lower PSI in the 33s.</p></blockquote><p></p>
[QUOTE="DickensCPA, post: 463961, member: 25994"] I think I have a weird duck anyway. I bought a bluetooth OBDII and JSCAN and when I measured my tires to make that change (went from stock 18" rims to 17" rims w/ 33s) plus lowered my TPMS from 32 to 28 PSI - I lost my speedo and it started popping CELs all beginning with "U" letting me know I had a connection error. I had to play with it forever and put everything back to stock and all the CELs went away and I got my speedo back. TBH, when I checked my speedo against GPS it appeared to be spot on. I guess there's just not enough difference between the stock 255/70/18 and 285/70/17 which equates to about .65" and the stockers were brand spanking new with about 32 miles on them and now my 33s have about 30,000 miles on them. Plus I run slightly lower PSI in the 33s. [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
Rear Aussie Locker
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