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73-87 Chevy _ GMC Trucks => Brakes, Frame, Steering & Suspension => Topic started by: beastie_3 on April 28, 2010, 10:35:09 pm

Title: Steering gear box rebuild
Post by: beastie_3 on April 28, 2010, 10:35:09 pm
Im looking to rebuild my steering gear box, as that is where the play is. I browsed a parts store online, and they ask what casting number I have. Anyone know where it is located so I can find it faster? Anyone rebuild one? How was it?
Title: Re: Steering gear box rebuild
Post by: Jacked85K10 on May 10, 2010, 12:03:09 am
Easy rebuild if you know what you're doing. The casting number is at the mounting flange where it bolts to the frame. You will have to remove the box to see it.
Title: Re: Steering gear box rebuild
Post by: beastie_3 on May 10, 2010, 01:49:07 pm
OK thanks. Thats what I didnt want to know. I was hoping it was visible prior to removing it. Either way, I suppose I have to get it done. Thanks!
Title: Re: Steering gear box rebuild
Post by: beastie_3 on May 17, 2010, 07:42:15 pm
Is there anyway to predetermine what casting number is on the steering gear box? Im looking for a rebuild kit, and it lists two numbers. First design 7802644L or second design 7802644.
Title: Re: Steering gear box rebuild
Post by: VileZambonie on May 17, 2010, 07:43:54 pm
You're going to wish you just got a reman unit. They're cheap enough.
Title: Re: Steering gear box rebuild
Post by: beastie_3 on May 17, 2010, 09:55:33 pm
Really that hard to rebuild huh? With the casting numbers, I assume they have to match if I get a new one?
Title: Re: Steering gear box rebuild
Post by: jaredts on May 18, 2010, 02:39:24 pm
Just asking:  Are you sure its the steering box causing all of the play?  A brand new unit is going to have some slop in it too--I've seen a lot of people say these are bad when they really aren't.  What looks like minor movement in other parts can add up big time.  Is this a 2 or 4 wheel drive?
Title: Re: Steering gear box rebuild
Post by: beastie_3 on May 18, 2010, 02:45:40 pm
4wd. It's the only thing left I haven't replaced. The steering wheel and steering shaft has slop in each direction before the pitman arm turns. How much slop does a new unit have?
Title: Re: Steering gear box rebuild
Post by: VileZambonie on May 18, 2010, 04:02:01 pm
You're sure the play isn't in the rag joint right? Do you know how to do the high point lash adjustment?
Title: Re: Steering gear box rebuild
Post by: beastie_3 on May 18, 2010, 04:41:31 pm
I'll double check to make sure it isn't the rag joint. Is the high point lash adjustment in a manual? I have haynes, chilton, and the factory manual.
Title: Re: Steering gear box rebuild
Post by: joesgarage71 on May 18, 2010, 07:16:02 pm
You're going to wish you just got a reman unit. They're cheap enough.

 Yea! X2 you start messin with them steel balls LOL
Title: Re: Steering gear box rebuild
Post by: VileZambonie on May 18, 2010, 08:50:26 pm
Here look in this post http://forum.73-87chevytrucks.com/smforum/index.php?topic=10041.0
Title: Re: Steering gear box rebuild
Post by: beastie_3 on May 19, 2010, 02:07:56 am
Thanks for the link! Ill try to get to it this weekend and report back.
Title: Re: Steering gear box rebuild
Post by: beastie_3 on May 30, 2010, 12:15:34 am
Finally got a chance to look at my slop a little closer. The steering shaft turns almost 1/4 turn before the pitman arm starts to move. The rag joint isnt the issue, its all firm. I'll probably order a new box after I decide which frame brace kit I want to get.
Title: Re: Steering gear box rebuild
Post by: VileZambonie on May 30, 2010, 05:37:23 am
Try adjusting the lash first just don't over do it.
Title: Re: Steering gear box rebuild
Post by: alex on June 12, 2010, 06:22:55 pm
If adjusting a steering box it is important to follow the factory manual exactly;the gear must be removed from the truck and the worm bearing preload set first before setting the over center adjustment.Although not hard to do adjusting a steering box is a safety related item and should be done properly.
Title: Re: Steering gear box rebuild
Post by: VileZambonie on June 12, 2010, 07:26:34 pm
Quote
the gear must be removed from the truck and the worm bearing preload set first before setting the over center adjustment

 ??? When initially setting up the gear box true the worm bearing preload is set first but the high point or sector lash adjustment can be done in the truck on an existing box.