16" wheels

[miked]

hello, I have a 74 620. I've installed new 16" tires & 16" wheels from a newer

exterra. I had to use 2 wheel spacers per wheel for clearnce, but I noticed that there wasn't enough thread engagment. the stock wheel studs are 12mm

by 1.25 if you measure from the edge of the step to the end of the bolt is

1 1/2" long. I have purchased longer wheel studs that measure 1 3/4" long.

With the stock studs I noticed at higher speeds the front end shakes & pulses

when I brake? Is this because of the shorter lug engagment or is there another issue I have not looked into yet?

thanks in advance, miked.

[Pacific coast Datsun]

The Xterra rims MAY require a certain style of lug nut. Could be vibrating due to the rim not being centered all of the time.

[Bleach]

sounds weird. I used 15x7 Frontier/Xterra wheels on a 620 and no spacers required.

 

Stacking spacers just sounds bad.

[]2eDeYe]

What Bleach said...X2

[Phlebmaster]

What Bleach said X 3

 

And what Redeye said X 2 :lol:

 

You don't want a wheel to come flying off at 55.:eek:

[denveratsun]

What Phleb said!:lol:

[ariascarlos1990]

Its not like its a '78 or newer so it has drum brakes. I don't understand why you would use spacers...:confused:

[yello620]

hello, I have a 74 620. I've installed new 16" tires & 16" wheels from a newer

exterra. I had to use 2 wheel spacers per wheel for clearnce, but I noticed that there wasn't enough thread engagment. the stock wheel studs are 12mm

by 1.25 if you measure from the edge of the step to the end of the bolt is

1 1/2" long. I have purchased longer wheel studs that measure 1 3/4" long.

With the stock studs I noticed at higher speeds the front end shakes & pulses

when I brake? Is this because of the shorter lug engagment or is there another issue I have not looked into yet?

thanks in advance, miked.

 

This actually sounds like a pretty serious safety concern. Stacked wheel spacers is a bit of a concern, but the short wheel studs and a wobble is a big concern. However, it could just be warped brake drum and out of balance tires. But did you warp the drums from the uneven tightening of the lugnuts with the spacers?

 

I would recommend not driving this truck until the wheel stud issue is fixed. You are working with 12mm studs, so you need 12mm of thread engagement at a minimum.

 

Good luck

[Orange620]

Its not like its a '78 or newer so it has drum brakes. I don't understand why you would use spacers...:confused:

 

Datsun 620 drums have a raised lip around the edge, on the face of the drum. The lip is higher than the machined face around the lugs where the wheel is supposed to seat. If you use a wheel that is just flat across its backside and not thicker in the center, the wheel will hang up on the lip of the drum and not seat. Spacers will also fix the problem, but require longer studs.

[ariascarlos1990]

That lip is not that big. You could use washers if you really had to. I see where your coming from though.

Edited April 24, 2009 by ariascarlos1990

[yello620]

That lip is not that big. You could use washers if you really had to. I see where your coming form though.

 

You gotta be fuckin crazy to use WASHERS. What are you thinking. That is not even close to a safe idea.

[ariascarlos1990]

It was a joke. :D