I have posted a similar thread like this before for my step dads truck. He did not really care for the jerking/jolt at low braking and said it didn't bother him so i kinda forgot about it....... HOWEVER! I myself have recently bought(Back in August 2011) a 2004 Toyota Tacoma Xtra-cab V6 3.4L(5VZFE) 4WD. I told myself that i would not ever buy another yota and only ever keep driving my 86 4runner and my 81 pick-up(project truck). But a friend of mine's bank was having a huge killer deal for used car loans at 2.49% intrest!!! I was like Oh em gee i'm on top of that..... Anyway... off topic.
My tacoma does the same thing my step dads truck does only its a little worse.... and unforutnatley it bugs the living hell out of me and i'm trying to remedy the problem.
Ok heres what it does.....
And low speed Crawl braking, like when coming up too a stoplight and creeping to a stop there is a heavy jolt/jerk that comes from the rear of the truck. Its kinda like someone dropping a cinder block in the bed of the truck feeling. But once the jek/jolt has pasted at that particular stop it will no longer do it until i drive it a few miles or few hunderd feet and repeat another slow crawl stop. Now the jolt/jerk is worse the slower i creep to a stop. But if i just pull up to the light and stop like kinda fast it won't happen as much OR once i let of the brake to take off from the stopping postion it will jerk/jolt.
There is also one other thing with i think is tied into the same issue area. Every time i take off/accelerate from a stop i have drive line vibration for about 1-2 secs then its gone and there is no vibration at all ever any other time except when i take off at a light or from a stop. <-- Kinda vibration like your spining your tires in the rain.
Interesting eh? Bugging the Sh%$#%t outta meh!
I've tried a few things already:
-Replaced Rear brake drums
-Re-sufaced Factory Drums
-Sanded brake shoes
-Re-adjusted rear brakes x5 ---^
-Greased Drive shaft(s) and U-joints and Yokes
^--- All of which made no difference at all.
I have few other slight ideas of things to do... -_-
But.. >_< Opinions?