Alignment specs, look right?
More Turbo
Joined: Feb 2006
Posts: 565
Likes: 1
From: Middletown,NJ
So stock (with 20" stock Michelin tires) it drove great. I then had 295/65R20E Toyo MTs and a readylift 1" spring lifting block installed and after these two changes I had 2.7* left and 2.9* right caster. I also now had loose steering, bump steer, and a fairly strong pull to the right. I was shocked for I had an alignment done and all was within specs. So I ordered PMF dual steering stabilizers and installed. This improved my bump steer by 50% of so but I was still not happy (still a little light, still pull to right, and still some bump steer).
From this forum, many say with level kits need around 4* left and 4.5* right caster, so I ordered SPC part numbers 23268 (2.3* caster bushing) & 23269 (2.6* caster bushing) and a realignment. I now have 4.6* left and 5.2* right caster. I have only drove about 25 miles after this change but it was a good improvement. my bump steer is back to stock level (acceptable) and steering feel is much firmer (which I like...I hate floaty steering). I surprisingly still have some pull to the right but not quite as bad as before. Many say the MTs have this characteristic.
From this forum, many say with level kits need around 4* left and 4.5* right caster, so I ordered SPC part numbers 23268 (2.3* caster bushing) & 23269 (2.6* caster bushing) and a realignment. I now have 4.6* left and 5.2* right caster. I have only drove about 25 miles after this change but it was a good improvement. my bump steer is back to stock level (acceptable) and steering feel is much firmer (which I like...I hate floaty steering). I surprisingly still have some pull to the right but not quite as bad as before. Many say the MTs have this characteristic.
Good info on the caster though, thank you. How are those caster degrees on the bushings interpreted, does that mean that the bushing gives you that much caster or the bushing gives you that much additional caster (not sure if I'm articulating that correctly). Did you make any track bar adj or is that all stock?
Freshman User
Joined: Dec 2016
Posts: 35
Likes: 0
You will notice the right pull with the Toyo MTs.....and anyone with the Nitto Trail Grapplers may notice a left pull.
Good info on the caster though, thank you. How are those caster degrees on the bushings interpreted, does that mean that the bushing gives you that much caster or the bushing gives you that much additional caster (not sure if I'm articulating that correctly). Did you make any track bar adj or is that all stock?
Good info on the caster though, thank you. How are those caster degrees on the bushings interpreted, does that mean that the bushing gives you that much caster or the bushing gives you that much additional caster (not sure if I'm articulating that correctly). Did you make any track bar adj or is that all stock?
on the caster bushings...ideally you need to know two things to begin with...what is your before caster angles and what are the before (stock) caster bushing angles. that way yoiu know what exact angles you need to add but I took a chance that what I ordered would work and it did.
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