Thank you for this posting. :thanks:
Between this forum posting, EricTheCarGuy's youtube video
Toyota 4 Runner Power Steering Rack Replacement (Full Version) - EricTheCarGuy - YouTube, this forum post on removing the AC Compressor
A/C Compressor Replacement., (unbolting the compressor allows one to get the left side steering rack bolt in/out with the V6 engine) and then finally this forum post on changing / removing the serpentine belt
DIY: Changing serpentine belts on the V6 (1GR-FE) 4Runners (as I wasn't finding the belt tension pulley and no belt routing guide under the hood... note, one doesn't need to remove the engine cover to get the belt on/off.)
I should mention this posting also helped
Steering Rack Replacement Step-By-Step DIY Guide For 5th Gen 4Runner as it gave insights into pulling the AC compressor loose to get the left rack bolt out - and even though the write-up is for a 5th gen, it is pretty accurate for the 4th gen as well exception being steering shaft setup and some of the hose routing paths.
I succeeded in getting my power steering rack successfully replaced this weekend in my '07 4Runner Sport with V6 - 235k miles on it.
Words of caution - (I don't think it was in any of the comments on this thread, but did see it mentioned in a steering rack rebuild thread) - when the seals start going out of the rack, the inner tie rod boots can fill up with fluid - have your drain pan handy when you start pulling those boots back if removing the inner tie rod ends on the old rack.
I will add,
one can get the new rack in without removal of the inner tie-rod ends. An extra set of hands to help navigate getting the new rack slid in might be helpful, but I did the whole project solo (in my driveway with just the car stands).
I ended up going with a "Cardone" rebuilt rack (lifetime warranty) from Advance Auto Parts (in stock). I had hoped to get a "NAPA Premium Steering" rebuilt (with lifetime warranty) from NAPA Auto, but the location closest to me closed, and the next closest location couldn't figure out how to get their registers operational after a power interruption or do any kind of manual process in the interim (even though I had already paid for the rack online and had now made 2 different trips to pick it up) to let me take their rack to get the project done and then do the paperwork later when I brought the core back.
I had seen recommendations for getting remanufactured racks from RackDoctor
Rack and Pinion - rack and pinion steering - rack and pinion remanufacturing - rack and pinion manufacturers - Rack Doctor and CVJ Axles
https://www.cvjreman.com/ and would have probably gone with either of them (they actually had better pricing) if I had something else to drive while waiting for the rack as I didn't think I could go another week before getting this addressed. I also had a long weekend this weekend for the project with it being Labor Day Weekend. For comparison - a New Toyota steering rack was quoted at $1200 plus $450 labor and $77 alignment (and taxes on top).
Quick Summary - I removed the front and rear underbody shields, front stabilizer bar, lower steering shaft, the 2 bolts holding front differential mount, bolt holding transmission lines (above right steering rack bolt), and bolt holding one of the AC compressor lines across the bottom of the engine. There were 3 bolts holding power steering lines that I removed (one on the rack, one right in front of the rack, and third one was on return line going back towards reservoir). Additionally, I pulled the 4 bolts holding the AC compressor (and removed serpentine belt from AC compressor) to be able to get clearance for removal / reinstallation of the left steering rack bolt (and 2 bolts holding a wire harness in front of the top rear AC compressor bolt). I also removed the low-pressure hose fitting from the steering rack before removal (and reinstalled on new rack after attaching pressurized hose) - a deep well 17mm socket works perfect for that.
Tools - I have a decent set of sockets / wrenches and a breaker bar. Also some impact sockets and impact wrench (and impact knuckles / socket drive adapters) already. I did pick up an impact hammer & bits, extensions for impact wrench, and long bent nose needle-nose pliers with 90 degree tip before starting this and was very glad I did as I ended up needing them. Only item I didn't have that may have made process a little smoother was a line wrench / flare-nut wrench - I stacked two 17mm wrenches, but that high-pressure fitting was still a bear to get worked loose. Wondering if a crowfoot type offset wrench would have made it easier... I did also douse everything with PB Blaster the day before (and some of it several times Saturday morning while trying to get things loose / cleaned up).
I still need to do a little alignment work, but since I have a (free) LOF scheduled Wednesday morning, I'll have the dealership do a courtesy alignment check before I tackle that (or may just let them do it...)