Back spacing recommendation (1 Viewer)

Joined
Oct 26, 2007
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Anacortes, WA
I have been running a set of 33's on 15 inch rims. I just got a set of 315/75R16s so I will need to get some 16 in rims. Can anyone recommend the proper back spacing?

And any suggestions on where to pick up some 16 in wheels?
 

Josie'sLandCruiser

Stop calling it a "FJ."
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Hi All:

Factory 40 Series wheels have 3.5 inch backspacing.

Realistically, if you are running wider than stock tires, and 'wheeling the rig you'll want to go with less backspacing - like maybe 2.0 or 2.5 inch.

Regards,

Alan
 

Josie'sLandCruiser

Stop calling it a "FJ."
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Hi All:

You are welcome!

Try Summit Racing. They can get some of the wheels they sell made with custom backspacing for about $25-30 more.

Regards,

Alan

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Thank you Alan.

Any idea where I can get a wheel 16in with less than 4 in back spacing?
 
Joined
Apr 10, 2004
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san pancho, ca
3 1/8 BS works for me :D

sua-06.jpg




16" wheel thread #1

16" wheel thread #2
 
Last edited:

Josie'sLandCruiser

Stop calling it a "FJ."
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Hi All:

I'm using a set of plain white "wagon wheels" that have 3.75 inch backspacing. On the rear axle I'm running a pair of 1.5 inch MarlinCrawler bolt-on wheel spacers. These spacers help provide enough clearance for the rear wheel travel of the OME 60 Series leaf springs my rig is running (the tires still rub the body tub just a little bit.)

Regards,

Alan

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I may wind up running wheels with 4 inch BS and some spacers. How much off set would be ideal with this set up?
 
Joined
Oct 26, 2007
Messages
247
Location
Anacortes, WA
Hi All:

I'm using a set of plain white "wagon wheels" that have 3.75 inch backspacing. On the rear axle I'm running a pair of 1.5 inch MarlinCrawler bolt-on wheel spacers. These spacers help provide enough clearance for the rear wheel travel of the OME 60 Series leaf springs my rig is running (the tires still rub the body tub just a little bit.)

Regards,

Alan

-----------------------------------------------------------------


Thank you. I will probably do similar with the bolt on wheel spacers. In purchasing the wheels, there still seems to be some choice in the offset. Since no one is mentioning the offset can I just ignore it? Or should I take it into consideration? For example if I could only get a 4 in back space in the wheel that I want should I choose the one with the largest negative offset? My fenders are cut, do I understand correctly that the negative offset will give me more clearance inside the wheel?
 
Joined
Apr 10, 2004
Messages
1,640
Location
san pancho, ca
Since no one is mentioning the offset can I just ignore it? Or should I take it into consideration? For example if I could only get a 4 in back space in the wheel that I want should I choose the one with the largest negative offset? My fenders are cut, do I understand correctly that the negative offset will give me more clearance inside the wheel?


With the BS measurements provided, I believe the offset can be determined by using a little math.

BS - (wheelwidth/2) = offset


wheeloffset.jpg
 
Joined
Mar 14, 2007
Messages
195
Location
Redding CA
My question is I was given a tire and wheel by someone and I put them on my axle and it does not hit the TRE does not mean it it is good? or what other problems should I be looking at?
 

Josie'sLandCruiser

Stop calling it a "FJ."
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Hi All:

Well, like I mentioned before the stick wheel backspacing is 3.5 inch. Lots of guys run 4.0 BS GM six lug wheels on their Toyotas.

For a Land Cruiser, if you are running tires much more wider than the stock tires you will probably have body tub rub issues if the suspension compresses a lot.

This is one reason more fellows are swapping-in 60 Series axles under their 40 Series. The wider axles do away with the need for wheel spacers or shallow BS wheels.

Regards,

Alan


Thank you. I will probably do similar with the bolt on wheel spacers. In purchasing the wheels, there still seems to be some choice in the offset. Since no one is mentioning the offset can I just ignore it? Or should I take it into consideration? For example if I could only get a 4 in back space in the wheel that I want should I choose the one with the largest negative offset? My fenders are cut, do I understand correctly that the negative offset will give me more clearance inside the wheel?
 

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