Ride height?

Dealing with all subsystems specific to the diesel powered Datsun-Nissan 720 pickup trucks.

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philip
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Posts: 1494
Joined: 18 years ago
Location: Southern California, USA

#16

Post by philip »

philip wrote: Suspension info

Be sure to review the "Suspension Tale" link.

The guys on the MSN forum experiment mostly on the 4x4, 2nd Generation suspension (1983-1/2 and later). You will find many references to upper ball joint spacers (I've tried these), .... -snip-
Update.

I can tell you how MUCH camber will be affected by installing these 1" thick spacers. There were no washers under the two A-arm bolts on the left. There were one washer each under both A-arm bolts on the right. This made Rt camber about 0.03°- . So 'we' removed those two washers to equalized left and right cambers:

With no thick spacer:

Camber was: Lt 0.03°+ Rt 0.03°+

Caster was : Lt 0.02°- Rt - 0.02°-


Now with the thick spacers

Camber was Lt 2.6°+ Rt 2.75°+

Caster. No change.

Image

Image

To reset the camber again but move the caster to 1.5°+ required about 3/8" washer on the rear bolt and about 1/4" washers on the forward bolt (these securing the upper arm to the frame).

AND ... replacing those A-arm bolts with longer bolts.

The upper joint spacers require longer bolts too. (8 total, 45mm long, 8x1.25 thread) are required.

I'm a little vague on these because my "suspension friend" did it all at his suspension shop (Hunter alignment) while I watched.

All said, it wasn't worth it because I was keeping the suspension height OEM. The truck drove a wee bit more stable at higher speeds due to the now positive caster. Keep in mind that the truck had no bed weight. Adding a heavy load would move caster towards positive anyway.

Usually, these thick spacers are used only for raised trucks.
-Philip
Passed 08May2008
My friend, you are missed . . .

1982 Datsun 720KC SD-22

"Im slow and I'm ahead of you"
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