Complete set of brand new front driveshaft bolts for 2007-current Wrangler JK, Unlimited JKU, JL, Unlimited JLU and Gladiator JT. If you're looking for the strongest driveshaft bolts you can get, here you go. 12.9 Class bolts are the strongest bolts made. This set includes (8) 12.9 Class bolts and (4) tie brackets for the front driveshaft to transfer case. The bolts use a socket head rather than the factory hex heads (JK) that are notorious for stripping. The front driveshaft to differential bolts are 10.9 Class (metric equivalent to Grade 8) and Dacromet coated for excellent corrosion resistance. Replaces Mopar part numbers 6508553AA, 68003249AB, 5191037AD, 6506497AA.