1990 4Runner - Shocks and Springs

[jay4runner]

My 1990 4cyl 4wd 4runner has 390,000 km on it. I know that it requires new shocks. Is it advisable that I also replace springs (the truck isn't necessarily sagging). Do springs typically need to be replaced. Also is there a particular shock I should consider - was thinking of the monroe sensa-track (37030/37033). Any thoughts?

 

[77'911]

I like Bilstein shocks and Moog coil springs for the rear. With that level of kms, the original suspension is probably pretty tired. The Moog springs were a huge improvement on our 1990 4runner (4wd, V6). You might consider replacing the control arm bushings with urethane units at some time, if you want to tighten things up.
regards

 

[jay4runner]

Thank you for the quick response. I will look for the bilsteins. I assume new springs on front would be appropriate as well? Could find the Moog springs for back but didn't see that for front. It was also recommended that I replace upper ball joints and some tie rods as well as idler arm.

 

[77'911]

No springs up front, torsion bars. I upgraded ours to 25mm Sway-a-way units. These will stiffen up the ride a bit, so, take due caution. We liked it because it improved the road handling characteristics and tracking on the highway. I would definitely replace the upper and lower ball joints. Replaced ours when the truck had about 80k on it and it made a huge improvement. You might see if you can find Japanese made ball joints(better quality then china units).
I purchased the urethane bushings through suspension.com, no affiliation, just satisfied customer.
regards

 

[jay4runner]

Thanks again. For the control arm bushings is it the front or rear or both you suggest?

 

[77'911]

Both, and you'll really feel the benefits. If you go urethane, I prefer to lube them with a mix of copper anti-seize and mobil 1 syn marine grease. Use the stuff like your not paying for it. ; )