73-87 crossmember and power steering question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

harleyx2 · 04-25-2007, 09:40 PM

Ok so im swapping in a 80 model crossmember and 5 lug disc brake setup in my 68 truck. Will my steering box work and if it will which pitman arm do I use? Do I use the 80 or the 68? Also will my drum brake power booster work with the 80 model master cylinder?

Ram-Man · 04-25-2007, 09:54 PM

The steering box will bolt on but I think the lines are metric thread. The pitman arm will need to be the same year as the steering box. I am pretty sure there are different pitman arms throughout the years.

harleyx2 · 04-25-2007, 10:18 PM

will my stock steering box work if i just connect the 80 model steering to my 68 pitman arm.

**Palf70Step** · 04-25-2007, 10:34 PM

You can change out the fitting of the Power steering pump to match the style of the box your using. I have a 72 (SAE THread) box, but a late model serpentine pump (metric thread/o-ring line fitting. The fitting connection on the rear of the pump is a big nut fitting. I unbolted it and bolted the one from the old style SAE fitting onto the new pump, then used stock power steering lines

harleyx2 · 04-26-2007, 07:25 AM

im not worried about the pump. i already have power steering. what i need to know is if the 80 model pitman arm will fit my 68 box?

**Palf70Step** · 04-26-2007, 12:53 PM

Sorry misread your second post.
It should work. The difference in pitman arms is whether it is Power or manual steering. As long as you have a power steering arm on the box it'll match up to the later front end if it came from a power steering equipped truck.

harleyx2 · 04-26-2007, 07:06 PM

thanks for your help. what motor mount plates should i run. the newer style or the older style?

**Palf70Step** · 04-26-2007, 08:14 PM

The newer style are better. I am running them on my 70, but I still have the original drums/cross member set up. I had to drill some holes, and it does set it back closer to the firewall, But I loke the idea of the newer style mounts. Either will work though.

harleyx2 · 04-26-2007, 08:52 PM

so the old style motor plates will work with the new er style crossmember?

**Palf70Step** · 04-26-2007, 10:08 PM

They should. You'll have to drill some holes for the mounts to bolt too (just like I did to doe the opposite, new to old).

04-25-2007, 09:40 PM	#1
harleyx2 Registered User Join Date: Apr 2007 Location: canton ga Posts: 49	73-87 crossmember and power steering question Ok so im swapping in a 80 model crossmember and 5 lug disc brake setup in my 68 truck. Will my steering box work and if it will which pitman arm do I use? Do I use the 80 or the 68? Also will my drum brake power booster work with the 80 model master cylinder?

04-25-2007, 09:54 PM	#2
Ram-Man Senior Member Join Date: Aug 2006 Location: Minnesota Posts: 943	Re: 73-87 crossmember and power steering question The steering box will bolt on but I think the lines are metric thread. The pitman arm will need to be the same year as the steering box. I am pretty sure there are different pitman arms throughout the years. __________________ Porterbuilt 8 Lugger http://67-72chevytrucks.com/vboard/s...d.php?t=691739

04-25-2007, 10:18 PM	#3
harleyx2 Registered User Join Date: Apr 2007 Location: canton ga Posts: 49	Re: 73-87 crossmember and power steering question will my stock steering box work if i just connect the 80 model steering to my 68 pitman arm.

04-25-2007, 10:34 PM	#4
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,083	Re: 73-87 crossmember and power steering question You can change out the fitting of the Power steering pump to match the style of the box your using. I have a 72 (SAE THread) box, but a late model serpentine pump (metric thread/o-ring line fitting. The fitting connection on the rear of the pump is a big nut fitting. I unbolted it and bolted the one from the old style SAE fitting onto the new pump, then used stock power steering lines __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!

04-26-2007, 07:25 AM	#5
harleyx2 Registered User Join Date: Apr 2007 Location: canton ga Posts: 49	Re: 73-87 crossmember and power steering question im not worried about the pump. i already have power steering. what i need to know is if the 80 model pitman arm will fit my 68 box?

04-26-2007, 12:53 PM	#6
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,083	Re: 73-87 crossmember and power steering question Sorry misread your second post. It should work. The difference in pitman arms is whether it is Power or manual steering. As long as you have a power steering arm on the box it'll match up to the later front end if it came from a power steering equipped truck. __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!

04-26-2007, 07:06 PM	#7
harleyx2 Registered User Join Date: Apr 2007 Location: canton ga Posts: 49	Re: 73-87 crossmember and power steering question thanks for your help. what motor mount plates should i run. the newer style or the older style?

04-26-2007, 08:14 PM	#8
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,083	Re: 73-87 crossmember and power steering question The newer style are better. I am running them on my 70, but I still have the original drums/cross member set up. I had to drill some holes, and it does set it back closer to the firewall, But I loke the idea of the newer style mounts. Either will work though. __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!

04-26-2007, 08:52 PM	#9
harleyx2 Registered User Join Date: Apr 2007 Location: canton ga Posts: 49	Re: 73-87 crossmember and power steering question so the old style motor plates will work with the new er style crossmember?

04-26-2007, 10:08 PM	#10
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,083	Re: 73-87 crossmember and power steering question They should. You'll have to drill some holes for the mounts to bolt too (just like I did to doe the opposite, new to old). __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.