Join Date: Nov 2007
Location: Off the Grid in Chester Grant
The syncros will go bad fast if you use the wrong grade of gear oil in it. The modern stuff on the shelves is a GL5 rated oil, the old syncros need a GL3 or GL4 gear oil or the syncros start to fail.
Simply changing to the correct gear oil usually fixes them 'if' this is the issue. Napa sells the proper gear oil, SAE 85w90 Gear Oil GL4 (also meets GL3), Part # SL24239.
You could also just be low on fluid.
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos:
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