Steering boxes, diffence in years or 1/2 - 3/4 ton? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

northerngmc · 06-06-2007, 10:55 PM

Is there a difference in manual steering boxes between 67 - 72?

Is there a difference between 1/2 ton and 3/4 ton?

I believe the box in my 69 GMC 1/2 ton is well worn, but both the boxes in my 70 GMC 3/4 ton and 72 GMC 1/2 ton parts trucks have less play. I am considering swapping one of them into my 69 GMC 1/2 ton.

I did a little research this afternoon on here and I have already adjusted the box in my 69 1/2 ton by turning the screw in on top, but it is now all the way in. I started with about 3/8 of a turn of the wheel in play and now I am down to 1/4 of a turn. I also checked my front steering and everything seems fairly tight and clean, maybe the PO did some work on it? I also tried turing the steering column under the hood and the play appears to be in the box and the arm on the bottom does not move when I trun the column shaft back and forth.

northerngmc · 06-07-2007, 10:32 AM

OK 32 views but nothing, notta....

To simple?

To complex?

Not enough information?

1969k10stepside · 06-07-2007, 10:58 AM

I believe they are the same 1/2 and 3/4 ton but I think 67-69 are different than 71-72.Thats what LMC says and they are usually right when it comes to knowing what part fits what years and models,IMO.

Big Block · 06-07-2007, 12:51 PM

How about C/30 one ton and 1/2 ton box? Want to put p/s on my 1ton dump truck. Is a 605 box the same for 1/2, 3/4and 1ton? Not trying to jack your post.

stllookn · 06-07-2007, 02:12 PM

C10, 20, and 30 series are all the same and interchangeable. Series 40, 50 and 60 were different.

northerngmc · 06-07-2007, 02:28 PM

Quote:

Originally Posted by stllookn

C10, 20, and 30 series are all the same and interchangeable. Series 40, 50 and 60 were different.

Thanks,

Anybody able to confirm if 67-69 are different than 70 - 72?

**70STOVEBOLT** · 06-07-2007, 03:36 PM

Seems like I read on here 68-78 2wd will interchange, something about a dimple on the 67 frame rail that makes a 67 different, but the pittman arm must be used from the donor truck along with the steering box. Somebody chime in and correct me if I'm not correct.

**70STOVEBOLT** · 06-07-2007, 03:37 PM

Don't know about 4wd though.

06-06-2007, 10:55 PM	#1
northerngmc Registered User Join Date: Jan 2004 Location: Whitehorse YK Canada Posts: 2,651	Steering boxes, diffence in years or 1/2 - 3/4 ton? Is there a difference in manual steering boxes between 67 - 72? Is there a difference between 1/2 ton and 3/4 ton? I believe the box in my 69 GMC 1/2 ton is well worn, but both the boxes in my 70 GMC 3/4 ton and 72 GMC 1/2 ton parts trucks have less play. I am considering swapping one of them into my 69 GMC 1/2 ton. I did a little research this afternoon on here and I have already adjusted the box in my 69 1/2 ton by turning the screw in on top, but it is now all the way in. I started with about 3/8 of a turn of the wheel in play and now I am down to 1/4 of a turn. I also checked my front steering and everything seems fairly tight and clean, maybe the PO did some work on it? I also tried turing the steering column under the hood and the play appears to be in the box and the arm on the bottom does not move when I trun the column shaft back and forth. __________________ Blaine 59 GMC 9314 a.k.a. Whoopee 68 C20 50th Anniversary a.k.a. The Rat http://www.flickr.com/photos/northerngmc/ http://www.members.tripod.com/P-wee/index_032.htm 1.61803 is one H of a lot better than 3.14159, no really it is!

06-07-2007, 10:32 AM	#2
northerngmc Registered User Join Date: Jan 2004 Location: Whitehorse YK Canada Posts: 2,651	Re: Steering boxes, diffence in years or 1/2 - 3/4 ton? OK 32 views but nothing, notta.... To simple? To complex? Not enough information? __________________ Blaine 59 GMC 9314 a.k.a. Whoopee 68 C20 50th Anniversary a.k.a. The Rat http://www.flickr.com/photos/northerngmc/ http://www.members.tripod.com/P-wee/index_032.htm 1.61803 is one H of a lot better than 3.14159, no really it is!

06-07-2007, 10:58 AM	#3
1969k10stepside Registered User Join Date: Mar 2006 Location: USA Posts: 21,020	Re: Steering boxes, diffence in years or 1/2 - 3/4 ton? I believe they are the same 1/2 and 3/4 ton but I think 67-69 are different than 71-72.Thats what LMC says and they are usually right when it comes to knowing what part fits what years and models,IMO.

06-07-2007, 12:51 PM	#4
Big Block Big Block Join Date: Mar 2005 Location: Durham, N.C. Posts: 1,649	Re: Steering boxes, diffence in years or 1/2 - 3/4 ton? How about C/30 one ton and 1/2 ton box? Want to put p/s on my 1ton dump truck. Is a 605 box the same for 1/2, 3/4and 1ton? Not trying to jack your post.

06-07-2007, 02:12 PM	#5
stllookn Saving 1 truck at a time! Join Date: Aug 2001 Location: Kent, WA Posts: 6,465	Re: Steering boxes, diffence in years or 1/2 - 3/4 ton? C10, 20, and 30 series are all the same and interchangeable. Series 40, 50 and 60 were different. __________________ '68 C20 Longhorn 50th Anniversary 400/TH400 '68 C20 Longhorn 50th Anniversary 468/TH400w/buckets '72 C20 Halfhorn (Longhorn w/o cab and front clip) '69 Flxible Cruiser (look up ugly in the dictionary) Last edited by stllookn; 06-07-2007 at 02:13 PM.

06-07-2007, 03:36 PM	#7
70STOVEBOLT Senior Member Join Date: Jun 2005 Location: Winona Lake, IN Posts: 6,365	Re: Steering boxes, diffence in years or 1/2 - 3/4 ton? Seems like I read on here 68-78 2wd will interchange, something about a dimple on the 67 frame rail that makes a 67 different, but the pittman arm must be used from the donor truck along with the steering box. Somebody chime in and correct me if I'm not correct. __________________ 70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Sliding Rear Window Power Windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear

06-07-2007, 03:37 PM	#8
70STOVEBOLT Senior Member Join Date: Jun 2005 Location: Winona Lake, IN Posts: 6,365	Re: Steering boxes, diffence in years or 1/2 - 3/4 ton? Don't know about 4wd though. __________________ 70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Sliding Rear Window Power Windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.