I was a bit lazy yesterday so today I wanted to share some more info on the differences I observed using 3 different sets of wheel spacers on my Medium Slee lifted 100 with Michelin LTX AT2 tires in 285/70R17 mounted on Tundra Rock Warrior wheels.
The whole idea for the spacers came up because I wanted to run the Tundra Rock Warrior Wheels. In case you don't know, the wheels will fit just fine on the rear axle but on the front these wheels will not clear the Land Cruiser's massive protruding hubs.
I started with a set of 10mm slip on spacers. These allowed me to clear the front hub AND they leave a little lip on the hub for the wheels to still be mounted "hub-centric". The concern with the 10mm slip ons is that the stud now has 10mm less thread to use. This would actually be fine (I think) if you are running standard Land Cruiser or Tundra wheels where the lower end of the nut is countersunk inside the wheel. However, for the Rock Warrior wheels the nuts are acorn shaped and not countersunk so you have a very short stud which I did not like. Further, although the RW wheel can be mounted on the front, you still don't have enough clearance for the center cap so you either need to run without a cap or come up with something else. These were out and are now for sale in the classifieds.
My second set of spacers were the 1.5" Just Differential spacers. These are crafted beautifully and will let you mount the RW wheels on the front hubs and still fit the center cap. With the medium lift and 1.5" spacers, RW wheels and 285-70R17 AT tires, your tires will occasionally hit the upper fender liner on full compression. For other lift / tire / wheel combos, the 1.5" spacers might be perfect but they were just a tad too wide for me. The tires were outside the wheel wells by a tiny bit. Again, these are now for sale.
The final set I am currently using are 1.25" BORA spacers from Motorsport Tech. They are pretty well made but not as nice as the JD spacers. The issue I have is mainly with how the studs are pressed into the spacers - not all that clean where the JDs are perfect. Since the BORAs are 1.25" hub centric, they have a small lip that simulates the hub and allows you to mount the wheel. Problem is that the 1.25" spacer with this lip will not clear the 6 nuts on the outside of the hub. I think the 1.5" version will. I really wanted these to work so I notched the lip in the 6 areas where the nuts were interfering. It took a little elbow grease as none of my power tools were the correct shape / angle / design. Once that was done I was able to mount everything up including center caps. I think these spacers are just about perfect for my application.
Let me know if you need more info on anything.
The whole idea for the spacers came up because I wanted to run the Tundra Rock Warrior Wheels. In case you don't know, the wheels will fit just fine on the rear axle but on the front these wheels will not clear the Land Cruiser's massive protruding hubs.
I started with a set of 10mm slip on spacers. These allowed me to clear the front hub AND they leave a little lip on the hub for the wheels to still be mounted "hub-centric". The concern with the 10mm slip ons is that the stud now has 10mm less thread to use. This would actually be fine (I think) if you are running standard Land Cruiser or Tundra wheels where the lower end of the nut is countersunk inside the wheel. However, for the Rock Warrior wheels the nuts are acorn shaped and not countersunk so you have a very short stud which I did not like. Further, although the RW wheel can be mounted on the front, you still don't have enough clearance for the center cap so you either need to run without a cap or come up with something else. These were out and are now for sale in the classifieds.
My second set of spacers were the 1.5" Just Differential spacers. These are crafted beautifully and will let you mount the RW wheels on the front hubs and still fit the center cap. With the medium lift and 1.5" spacers, RW wheels and 285-70R17 AT tires, your tires will occasionally hit the upper fender liner on full compression. For other lift / tire / wheel combos, the 1.5" spacers might be perfect but they were just a tad too wide for me. The tires were outside the wheel wells by a tiny bit. Again, these are now for sale.
The final set I am currently using are 1.25" BORA spacers from Motorsport Tech. They are pretty well made but not as nice as the JD spacers. The issue I have is mainly with how the studs are pressed into the spacers - not all that clean where the JDs are perfect. Since the BORAs are 1.25" hub centric, they have a small lip that simulates the hub and allows you to mount the wheel. Problem is that the 1.25" spacer with this lip will not clear the 6 nuts on the outside of the hub. I think the 1.5" version will. I really wanted these to work so I notched the lip in the 6 areas where the nuts were interfering. It took a little elbow grease as none of my power tools were the correct shape / angle / design. Once that was done I was able to mount everything up including center caps. I think these spacers are just about perfect for my application.
Let me know if you need more info on anything.
Just be aware and look at your wheels first before you go with the 1". Conversely, you could grind if you needed a completely flat face.