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E-body upgraded steering box #1609033
04/18/14 05:03 PM
04/18/14 05:03 PM
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Killerinc Offline OP
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Killerinc  Offline OP
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Hi, If i want to upgrade my stock 1974 Steering box to a tighter one, which one do i use and what are the specs i am looking for?

Re: E-body upgraded steering box [Re: Killerinc] #1609034
04/18/14 10:38 PM
04/18/14 10:38 PM
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Utah and Alaska
astjp2 Offline
master
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Do a search and how much are you willing to spend? Power or manual...that is what you need to know.


1941 Taylorcraft
1968 Charger
1994 Wrangler
1998 Wrangler
2008 Kia Rio
2017 Jetta

I didn't do 4 years and 9 months of Graduate School to be called Mister!
Re: E-body upgraded steering box [Re: Killerinc] #1609035
04/19/14 01:06 AM
04/19/14 01:06 AM
Joined: Jan 2003
Posts: 27,466
So Cal
autoxcuda Offline
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Quote:

Hi, If i want to upgrade my stock 1974 Steering box to a tighter one, which one do i use and what are the specs i am looking for?




For power steering choose between a Firm Feel rebuilt box and Borgensen box (Modern box modified to "bolt-in" fit mopars).

Re: E-body upgraded steering box [Re: astjp2] #1609036
04/19/14 02:14 AM
04/19/14 02:14 AM
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Killerinc Offline OP
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Power steering and looking to spend as little as possible.
I heard you can swap in a Mopar cop car one which is stiffer. Is it a direct swap?
I checked out Firm Feel and they want $359

Re: E-body upgraded steering box [Re: Killerinc] #1609037
04/19/14 02:55 AM
04/19/14 02:55 AM
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Ply72rr Offline
mopar
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Adjusting the power steering pump pressure down would be the cheapest way, you just need to add shim washers to the pressure regulator. There was a article in Mopar Action that explained how or do a search on this site.

Re: E-body upgraded steering box [Re: Ply72rr] #1609038
04/19/14 02:13 PM
04/19/14 02:13 PM
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Killerinc Offline OP
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Thx, yes i found that article and will try that Mod.
But does anyone know if the Cop steering box bolts up and which one is it?

Re: E-body upgraded steering box [Re: Killerinc] #1609039
04/19/14 02:29 PM
04/19/14 02:29 PM
Joined: Jan 2011
Posts: 4,785
Utah and Alaska
astjp2 Offline
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There are probably a dozen postings on this, do a search and you will find out. Also Look in the reference section. Tim


1941 Taylorcraft
1968 Charger
1994 Wrangler
1998 Wrangler
2008 Kia Rio
2017 Jetta

I didn't do 4 years and 9 months of Graduate School to be called Mister!
Re: E-body upgraded steering box [Re: astjp2] #1609040
04/19/14 03:13 PM
04/19/14 03:13 PM
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Killerinc Offline OP
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I dont see any posts except my own, can you link them?

Re: E-body upgraded steering box [Re: Killerinc] #1609041
04/19/14 04:12 PM
04/19/14 04:12 PM
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Posts: 27,466
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autoxcuda Offline
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Two things going on here

-Worn/misadjusted box that has too much play between the input and outputs shafts

-Too much power assist. Boxes are rebuilt by firm feel with different reaction springs to change the assist feel. Or as mentioned you can change the pump flow by shimming the pump spool valve.

You can have a no power assist at all and still have a loose steering box.

Re: E-body upgraded steering box [Re: Killerinc] #1609042
04/19/14 04:33 PM
04/19/14 04:33 PM
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So Cal
autoxcuda Offline
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Quote:

Thx, yes i found that article and will try that Mod.
But does anyone know if the Cop steering box bolts up and which one is it?




IIRC, Cop power steering boxes first showed up in about 1974? and continued to the last RWD Diplomat police car in 1989.

Not all "cop cars" have Cop Steering boxes. The cop car steering box was part of the special police handling option and noted on the fender tag. What might seem like a HiPo cop car in the yard, might be a general services, city patrol, etc vehicle that was not needed for extreme performance. There used to be a rumor that if there was a rubber plug with a molded in "K" inserted into a tag on the top adjusting nut, it was a special cop car steering box. Take that info for what it's worth.

Now just because you find a cop car in the junkyard with the police handling stamped on the fender tag, doesn't mean it still has a cop box still in it. Those cars are commonly turned into Taxi Cabs and get tons of hard miles put on them and not easy on steering boxes.

If the steering box was replaced by the Taxi cab company, it is EXTREMELY doubtful they would replace it with a NOS police box that was about double the cost of a remanufactured Mopar parts steering box back in the day. And most likely a Taxi cab company would just exchange the steering box for a cheaper independent parts store rebuilt box than a Mopar remanufactured one.

Also all cop car steering boxes are large spline output since they started making them in the mid 70's after the last small spline box was offered in 1972 model year.

Last edited by autoxcuda; 04/19/14 04:37 PM.
Re: E-body upgraded steering box [Re: autoxcuda] #1609043
04/21/14 01:05 AM
04/21/14 01:05 AM
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Killerinc Offline OP
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wow thats some great info, thx.
What if i wanted to buy a new cop one? what are the specs to look for?

Re: E-body upgraded steering box [Re: Killerinc] #1609044
04/21/14 01:45 AM
04/21/14 01:45 AM
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Posts: 27,466
So Cal
autoxcuda Offline
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Quote:

wow thats some great info, thx.
What if i wanted to buy a new cop one? what are the specs to look for?




They (Mopar) stopped making NOS Cop Car steering boxes in the early 90's. That was you only source for a 100% new cop car box.

If you want a box rebuilt like a cop car box or even firmer, go to Firm Feel Inc. Dick has the cop car and even firmer reaction springs to tailor you steering box to the firmness you desire with the goodies contained in the Cop Car box and beyond.

Re: E-body upgraded steering box [Re: autoxcuda] #1609045
04/21/14 12:41 PM
04/21/14 12:41 PM
Joined: Jan 2010
Posts: 1,442
NW Chicago suburban area
Mopar Mitch Offline
pro stock
Mopar Mitch  Offline
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How bout another option... being Steer'N'Gear located in Ohio? Don't they rebuild/modify comparably to Firm Feel?



Mopar Mitch "Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers! Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!
Re: E-body upgraded steering box [Re: Mopar Mitch] #1609046
04/21/14 01:48 PM
04/21/14 01:48 PM
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Killerinc Offline OP
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Hey Mitch, Thx. They will do the same job for $95 cheaper. I'm not a cheap skate, it's just because i am restoring the whole car and everything is adding up. More money i save is more money i can put into the car.
The new reman'd box plus doing the shims on the pump will be great.







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