Recently I purhased two 1310 joints, one for a front axle and one for the spare parts box. The joints arrived within 5 days! Last week I swapped the old, front joint for new with no issues. Today I took the Jeep on a trail run with rocks, roots, deep puddles and snow. There were zero isue with the new joints or nearly ten year old Tom Woods drive shafts, front and rear in my TJ6. Good people, seeling good products!