GM Steering Gearbox Replacement GMT800
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- čas přidán 10. 09. 2024
- In this video I show how to R&R a steering gearbox in a GMT800 GM chassis. This is GM 1999-2006 and early 2007 (Classic) chassis. This is a pretty straightforward repair that is very common on this vintage of GM truck.
This is a real mechanic. Thank you for the video.
Thank you. I appreciate the comment and thanks for taking the time to watch.
Mike
The easy way that I could tell the difference between the two styles is is that the 32 spline has 4 key ways and the 33 spline has 3 key ways which you can see without taking the arm off. This is to help others figure it out without driving yourselves crazy!!!
What size nut is on the pitman arm connecting it to the steering box??
If memory serves it is 1-7/16".
Great video Sir. I was able to swap out my gear box in an easy weekend project working a couple hours a day. Your video show all the steps and tips I needed to keep it fun and productive.
Thanks a lot....
Awesome. Glad to hear it was helpful. Thank you for taking the time to watch.
Mike
Best video of how to do this job on CZcams. Hands down. I’m kind of surprised the guy didn’t have you put a new Pitman arm on there at least. I’m getting ready to do an entire steering replacement on my ‘03 Sierra 2500HD Dmax. Went with the Redhead box and Kryptonite on everything else. Should be the last time I do this. I hope.
Thank you.
Mike
Thank you for this video its helped me change my gearbox in my 03 Silverado 2500HD
Glad it was helpful.
Thanks for watching.
Mike
Thank you so much Mike ! Excellent video !
Thank you. Glad to hear it was helpful.
Mike
Great video man, very thorough. Will definitely help me out, thank you for sharing :)
Excellent video!
Thank you.
Mike
Great video and very informative
Thank you and thanks for watching.
Mike
This video shows up just after I finished mine,
Thank you for the video.
You are welcome. Thanks for taking the time to watch.
Mike
How do you bleed the gearbox after filling the pump and reservoir?
Raise the front end, fill reservoir and cycle steering lock to lock with engine off to burp the air out of the system. Keep reservoir full and do this until air bubbles dissipate. This may take 10-20 cycles. Then start engine and repeat until system is bled.
Mike
Thanks for putting up a decent video without moving & bouncing a camera around at multiple angles where we'd easily lose track of where is the area of work. Just curious, was it leaking steering fluid?
Yes.
Thanks for the comments.
Mike
I have a gearbox leaking from what I think is the sector shaft seal. Is it worth to re seal these? Or should ya just replace them.
At the time I could not locate a seal kit so I had to get a replacement gearbox (re-manned). It would definitely be more cost effective to re-seal if you could source a seal kit.
Mike
What the hell is it with these GM's and the steering? I have to do mine too because it gets air in the system found out through osmosis of replacing everything.
This would be a repair fit for a 2002 GMC Sierra 1500 as well?
When installing the pitman arm to the gear box is there an indexing mark on each component for proper alignment?
Not a mark per se but a flat section in the splines that will only allow the pitman arm to index to the sector shaft in one position.
Mike
What type of tool did you use to break pitman arm loose from drag link?
I used an OTC 6496 outman arm puller.
Mike
Thank you sir.
min 13.28 how did you know this is 33 spline by just putting flat screwdriver in? thx
I used my pocket screwdriver to counted the splines. When editing I cut out the entire counting process. You can see the video jumped ahead as soon as I started counting.
What’s the name of the tool you use to get the pitman linkage off the gear box and where do I find one
Rent one for free from your local auto parts store. Unless you’re a mechanic you’ll only use it once.
My power pump was changed out...but steering to the right is still hard at stand still...would gear box be next culprit?...thanks...ur video is informative.
I would make certain there isn’t something in the linkages binding before just replacing the gearbox. Check ball joints, tie rods, etc. first.
Thanks for watching.
Mike
Did your steering box come aligned? How would you go about aligning it in the event of it being out of clock
Turn input shaft one direction until it stops (do NOT force it). Put an orientation mark referencing the sector shaft’s position. Turn the other direction until it stops while counting how many turns of the input shaft and mark sector shaft orientation. Divide turns in half and turn back that amount. Sector shaft should be halfway between marks at either side and is now centered.
Mike
I wish you had shown the bleeding procedure.
Sorry. It's pretty simple though. Just raise the front end and turn steering wheel lock to lock without the engine running to work out the air pockets. Once you stop adding fluid to bring it to level, start the engine and repeat. I prefer to do it with no stress on the system so I raise the front tires off the ground. How that helps and thanks for watching.
Mike
I have an ‘05 Hummer H2, and I have a power steering leak, and went under the truck and I could see the splines where the pitman arm goes to the gear box, I remember I watched this video before to reference it, and it looks like the pitman arm isn’t seated correctly I could see all the splines.
Hope you were able to get the leak addressed and pitman arm seated properly.
Glad this was helpful.
Thanks for watching.
Mike
Mike have you done this exact job on a later model? I have an '11 duramax just hoping there is enough room for box to come out without removing anything extra. TIA
Sorry, I haven’t replaced a gearbox on the newer generation GMT chassis.
Nice love it
Thank you. I appreciate that.
Mike
Did you ever have to take cooler pipe loose and move it out the way?
No need to move the intercooler piping if you can use a crows foot and can remove the fitting.
Mike
What a professional job! I appreciate you taking the time and effort to put anti seize on the components that someone else down the road will be grateful for!
I am glad I watched your video...I just ordered a new RedHead box to replace my stock one...but I have already replaced the pitman arm very recently...I have no idea what the spline count is on the pitman, nor do I know the spline count on the box coming my way. I will need to make some calls.
Thank you for taking the time...I for one wish you had covered the bleeding process. But, I think RedHead has specific instructions for that.
Any suggestions on best power steering fluid to use?
Thank you for the comments.
As for power steering fluid, any off the shelf power steering fluid will meet the requirements. I know a lot of people run ATF but that’s kind of old school and some seals require different additives so I tend to stick with manufacturer’s recommendations.
I have had excellent results with either Valvoline’s power steering fluid or AC Delco’s. For the past several years now I’ve been running the AC Delco in my 2500 HD Duramax as well as my Jeep Wrangler that I put an LS in.
Mike
My 99 is hard to turn to the right. Left is great. I assumed the seals are shot internally?
More than likely a seal on the internal spool valve is allowing fluid past. That’s about all I can think if causing different turning left vs right, unless there is a component in the steering system binding up somewhere.
Mike
Did u ever find issue...i have same problem
What was the reason for the replacement (leaking) ?
Yes, it was leaking and unable to locate a seal kit.
Mike
@@zmotorsports62 great video clip on doing this job. I have a 2006 GMC Sierra 1500 4x4 and have a whining Gear noise associated with Engine RpMs . After replacing what I though was a Bad Power Steering Pump still have the noise. Swapped out the alternator with a buddies truck (just to take that out of the question) and replaced the belts and idler pulley and tensioner . still the same gear noise. What I have noticed also is when turning right getting a hum like a bad tire .When idling almost seems like no power steering have to rev the engine to turn wheels . So I'm guessing the Power steering Box any Ideas ??All fittings have ample grease .
The boxes generally don’t make noise but I guess it’s possible. Usually a squealing noise from the steering system is either the pressure relief valve in the pump or the gerotor gears in the pump.
Any strain on the belt train can exaggerate any other bearing in the entire belt train such as a tensioner, alternator bearing or even an A/C compressor outer bearing.
I’ve found using a stethoscope to isolate the noise is very helpful. Just be EXTREMELY careful as you will be around moving parts.
Mike
@@sparkyart5702 did u ever figure it out?
Why didn't you just replace the arm with it?
There’s no need to replace the pitman arm if there’s nothing wrong with it. That is just an added expense that is not necessary.
Mike
I need a how to for a Chevy Express 2001 van
Sorry, don’t have one for that.
Thanks for watching though.
Mike
I will like to join your shop
Welcome aboard.
Thanks for watching.
Mike
You said you are in Northern Utah? Wanna fix mine?
Sorry, too many projects and no time. I closed my business down a couple years ago and pretty much just work on my own and family stuff now.
Thanks for thinking of me though and thanks for watching.
Mike
@@zmotorsports62 I am finally going to attempt mine next week :)
the audio is horrible--sounds like the mike is attached to your neck -the breathing is soo loud-otherwise the info is good--lol
It's a two week job if your doing everything, n completely cleaning all the dirt n grease, off.