I purchased new rims and tires this past spring on my 3/4 ton Chev. I chose a set of 17 x 8 inch rims with 8 bolt holes. To install them I had to use spline lug nuts to fit through the narrower hole through the rims. The tire dealer installed tires and rims on the truck. I checked the torque later using my torque wrench set to 140 ft lbs. Installing the splined lug nuts requires an installation tool. The socket goes over top the installation tool.
Today I pulled them off and put on my winter tires which are mounted on the original Chev rims and use conventional lug nuts. The rims I took off had a plastic cap secured with two bolts with allen heads. I made sure to use antisieze on them.
I was able to break the torque on the splined nuts in a star pattern using my 400 ft pound corded impact wrench. After breaking the torque I spun them off with the same impact wrench. I put the winter rims on and used my lower powered 18V battery impact wrench to torque them to about 70 ft lbs in a star pattern then finished them by hand using my torque wrench set to 140 ft lbs.
Anyway, here are some shots for anyone here who has not worked with splined lug nuts. Enjoy.
Today I pulled them off and put on my winter tires which are mounted on the original Chev rims and use conventional lug nuts. The rims I took off had a plastic cap secured with two bolts with allen heads. I made sure to use antisieze on them.
I was able to break the torque on the splined nuts in a star pattern using my 400 ft pound corded impact wrench. After breaking the torque I spun them off with the same impact wrench. I put the winter rims on and used my lower powered 18V battery impact wrench to torque them to about 70 ft lbs in a star pattern then finished them by hand using my torque wrench set to 140 ft lbs.
Anyway, here are some shots for anyone here who has not worked with splined lug nuts. Enjoy.
Last edited: