[tacopia]

Ok...I've had a 2.5" spacer lift for a few years now and have always had a shaking in my truck when I was going about 55. It recently got worse, and I thought it was due to one tire that was almost bald (with the other 3 having about 30-40% tread left). I assumed I had an alignment issue as well.

So I bought a new set of tires, got an alignement and I still have a shaking that is pretty bad from 55 up. I used to just drive under or a bit over and everything was ok...but saying my top speed is 55 is not going to work.

I've dropped my carrier bearing a while back and thought I may need to revisit that? Anyone have an idea of about how much they have dropped their carrier? Are there any other things I should be looking at here? I'm suppose to go on a road trip this weekend and would like to get this fixed.

 

[afcajun]

Read this...i had the same problem and so does this other guy...my bushings on my rack and pinion are shot...the ones that hold it to the crossmember...check that if it's not it then keep looking...this could very likley be your problem.

http://www.tacomaterritory.com/forum/showthread.php?t=2463

 

[tacopia]

Wow...that actually does probably explain my problem. thanks.

 

[afcajun]

No prob! If you missed it in that thread here is the link to get the new poly bushings to replace your worn ones...that is if that is your problem...anyways here's the link.

http://www.suspension.com/toyotapickups.htm

just look for the rack and pinion bushing kit. part number 8-10101

 

[tacopia]

I've noticed that I have a small "clunk" or "pop" when I turn left only. Does this sound familiar at all? It is consistent when I turn a certain amount left every time.

Also, I just had an alignment done after I got these new tires on. Will installing new bushings have any effect on that?

 

[afcajun]

I just had an alignment done after I got these new tires on. Will installing new bushings have any effect on that?

hum, good question, i wouldn't think that it woud because the rack and pinion should go back in exactly the same place because of the two places on the rack where the bolts go through holes in the rack and in the crossmember. Looks like they are there for positioning as well as attachment, and the c clamp style bracket is there more to hold the rack and pinion in place against the crossmember. But with all the jarring around under there and wheels shaking so much i think it would not be a bad idea to get an alignment done, I was planning on getting one anyway but i have that Firestone lifetime alignment deal so it only cost me my time to get lined up. I would suggest that deal to anyone who plans to modify their IFS with larger tires...although my fabtech 6" kit holds up really really well. I just like to be sure cause i ate up my stock tires really fast because of a misalignment. Just gave me reason to throw on the lift that much sooner!