The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - No RTC (return to center) with steering, CPP

'68 Newtricks · 04-02-2016, 07:22 PM

'68 turning ratio is 3.25 turns lock to lock
S10 turning ratio is 2.25 turns lock to lock (stock zq8 box)

The S10 is still far easier to turn with the wheels in the air.

The '68 has a 2005 LS, with an 88k mile stock pump. I can tell, after putting almost 1k miles on since complete, the pump is starting to whine. It is super faint but I can tell it's not happy.

I've read about some other people having a similar issue, but with completely different vehicles. I understand the box is supposed to be "tighter" in ratio than a stock box, but I never really drove the truck with the stock box. I can rotate my S10 steering wheel with one finger while off the ground, the '68 I cannot. CPP says it's a 2 finger turn, fine, but the S10 still has a quicker ratio. Never mind the wide tires, they are in the air. I also bled it with the wheels up, engine off. Same method I used to bleed my hydro assisted Blazer's steering. There has to be something wrong with the box. Even if I had ZERO pressure from the pump, it should still return to center. Yes, 5* caster, even better than the S10's.

Also, it has a new steering column. Nothing frozen

04-02-2016, 07:22 PM	#19
'68 Newtricks Registered User Join Date: Feb 2014 Location: Los Angeles area :( Posts: 499	Re: No RTC (return to center) with steering, CPP '68 turning ratio is 3.25 turns lock to lock S10 turning ratio is 2.25 turns lock to lock (stock zq8 box) The S10 is still far easier to turn with the wheels in the air. The '68 has a 2005 LS, with an 88k mile stock pump. I can tell, after putting almost 1k miles on since complete, the pump is starting to whine. It is super faint but I can tell it's not happy. I've read about some other people having a similar issue, but with completely different vehicles. I understand the box is supposed to be "tighter" in ratio than a stock box, but I never really drove the truck with the stock box. I can rotate my S10 steering wheel with one finger while off the ground, the '68 I cannot. CPP says it's a 2 finger turn, fine, but the S10 still has a quicker ratio. Never mind the wide tires, they are in the air. I also bled it with the wheels up, engine off. Same method I used to bleed my hydro assisted Blazer's steering. There has to be something wrong with the box. Even if I had ZERO pressure from the pump, it should still return to center. Yes, 5* caster, even better than the S10's. Also, it has a new steering column. Nothing frozen __________________ '68 C10 SWB '85 K30 Blazer Last edited by '68 Newtricks; 04-02-2016 at 07:39 PM.