I want to improve my steering feel. Where can I get the high effort valve(S) to replace the low effort type in my stock RS steering box? Any part #s would be appreciated.

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Black 1989 RS Convertible w/43,000 mi.
Excellent Condition
LO3 305 w/TBI
12 PSI Fuel Pressure
6* Timing Advance
MSD Coil And Wires
Open Element 14x3 K&N
Hypertech Thermomaster
160 Degree Thermostat
Low Temp Fan Switch
Eddlebrock RPM Muffler
No Cat/No AIR Injection
B&M Stage 2 Shift Kit
17"x8.5" ATP 5 Spoke Alloys
P 245/45 Goodyear Eagle
HP Ultra Plus Tires
Lakewood Control Arms
Lakewood Pan Hard Rod
Coming Soon:
Hedman Headers & Y Pipe
12 Bolt With 3.73 Gears
NOS System

 

Also, I don't want the high ratio steering gears because I think they cause the car to weave to easily at highway speeds. I just want to swap in the high effort valving for a heavier steering feel.

Has anyone had experience building the boxes?
Are they easy to get back together?

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Black 1989 RS Convertible w/46,000 mi.
Excellent Condition
LO3 305 w/TBI
15 PSI Fuel Pressure
10* Timing Advance
MSD Coil And Wires
Open Element 14x3 K&N
Hypertech Thermomaster
160 Degree Thermostat
Low Temp Fan Switch
Hedman Headers & Y Pipe
Eddlebrock RPM Muffler
High Flow Cat
No AIR Injection
B&M Stage 2 Shift Kit
17"x8.5" ATP 5 Spoke Alloys
P 245/45 Goodyear Eagle
HP Ultra Plus Tires
Lakewood Control Arms
Lakewood Pan Hard Rod
Coming Soon:

1.6 to 1 Roller Rockers