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Username Post: '68 Caprice Steering Box Upgrade        (Topic#361214)
SSuper Dave 
Member
Posts: 424

Loc: Pearland TX
Reg: 10-02-05
05-31-20 06:00 PM - Post#2795346    

In the 'A' body (Chevelles) world, a Jeep Grand Cherokee steering box is a drop in upgrade for a firm, close ratio feel, and I've done it to several of my own. Does anyone know if this swap will also work on a 'B' body? My original steering box is pretty loose and I'm looking for an inexpensive upgrade.My thought is that the stock boxes are the same,and that it would also be a 'B' body drop in.
Thanks.

1968 Caprice coupe, 327/275, TH400, Ash Gold/Ivy Gold, Tach Dash, Tilt, Buckets, Console, AM/FM, Rear Defog, Disc and Rallys.
1970 El Camino, 350, TH400, 12 bolt posi, a blank slate!


 


Double Aught 
Contributor
Posts: 353

Loc: SW America
Reg: 09-28-11
06-01-20 07:21 PM - Post#2795431    
    In response to SSuper Dave

There's a guy on fb selling reconditioned, fast ratio boxes for Impalas. Carhex I believe is the user name. You could also do a search. I bought one for my 68, but not from Carhex. I can't remember the company I purchased from, but I believe they are on ebay.



Edited by Double Aught on 06-23-20 08:42 PM. Reason for edit: No reason given.

 
Rick Dorion 
"7th Year" Gold Supporting Member
Posts: 287
Rick Dorion
Loc: Accord, NY
Reg: 09-21-12
06-02-20 06:47 AM - Post#2795455    
    In response to Double Aught

Yes, the Jeep box works. I have one installed although I'm a few weeks away from driving.

1967 Belair - perfect floor, frame and pinchwelds. Oh boy.


 
59fins 
Member #212 "20th Year" Gold Supporting Member
Posts: 2377
59fins
Age: 60
Loc: Surprise Az USA
Reg: 04-07-00
06-02-20 11:37 AM - Post#2795478    
    In response to SSuper Dave

Not sure why you would want a quicker ratio steering gear? Or am I missing something?

These cars are pretty big to road race or ? Just curious why one would want one?

Someone please enlighten me

Bill H.
67 SS




 
Rick Dorion 
"7th Year" Gold Supporting Member
Posts: 287
Rick Dorion
Loc: Accord, NY
Reg: 09-21-12
06-02-20 03:38 PM - Post#2795500    
    In response to 59fins

For me, the benefit is a firmer feel. The quicker steering is not that important for my car which is mainly street driven.

1967 Belair - perfect floor, frame and pinchwelds. Oh boy.


 
SSuper Dave 
Member
Posts: 424

Loc: Pearland TX
Reg: 10-02-05
06-02-20 04:55 PM - Post#2795503    
    In response to Rick Dorion

Rick is right, the firmer feel is the main reason. The JGC box does what others do for a 3rd of the price as well. My existing box has 52 years and 170,000 miles on it, and is one of the few mechanical components that I have not replaced.

1968 Caprice coupe, 327/275, TH400, Ash Gold/Ivy Gold, Tach Dash, Tilt, Buckets, Console, AM/FM, Rear Defog, Disc and Rallys.
1970 El Camino, 350, TH400, 12 bolt posi, a blank slate!


 
mjc1 
Senior Member
Posts: 1662
mjc1
Loc: Burlington Ontario Canada
Reg: 09-15-04
06-02-20 07:58 PM - Post#2795513    
    In response to SSuper Dave

A 12.5:1 box is probably one of the best mods I made to my 67. Changed the road feel so much for the better.

1967 Grande Parisienne 4DR HT
My Flickr page



 
sz0k30 
"12th Year" Gold Supporting Member
Posts: 492
sz0k30
Loc: Oakland Co., Michigan
Reg: 10-12-08
06-03-20 07:51 AM - Post#2795550    
    In response to mjc1

I did a lot of front end work on my 67 about 3 years ago including having the steering gear rebuilt. That was probably the biggest drivability improvement I made. I don't know the ratio, but I went from I think 4-1/2 turns lock to lock to about 3-1/4 turns L to L. I was like steering a much newer car. Before I had to constantly adjust the wheel about 1/2 turn just to go straight on a straight road.

Also the power on the old gear was too much power. It was pinky finger steering. The rebuilt gear had a firmer feel that actually felt good.



 
59fins 
Member #212 "20th Year" Gold Supporting Member
Posts: 2377
59fins
Age: 60
Loc: Surprise Az USA
Reg: 04-07-00
06-03-20 03:30 PM - Post#2795574    
    In response to sz0k30

Well I guess I am a little behind the curve !
I have heard about these, someone said in the 66 forum they did this and they have a sharper turn, I were to have a closer turning radius, my tires would rub, but may change with the HD springs and BB ? I rebuilt my p/steering gear with a nos shaft and kit because I had it. (Just hope it does not leak) and they are a pain to do when you had not rebuilt one one before.

Can you use this gear with a factory BB steering pump, they appear similar so assume they would.

I have about everything for the F-41 package installed, except shocks, won't spend stupid money when I'm driving it! If you can even find them!

I guess if my p/s gear rebuild fails, we may be re-visiting this, thanks for the info.



Bill H.
67 SS




 
Skeeters68 
Newbie
Posts: 6

Reg: 07-05-20
07-09-20 10:02 AM - Post#2798271    
    In response to SSuper Dave

I have the same issue. If you do decide to do the modification. Please post

Thanks



 
Rick Dorion 
"7th Year" Gold Supporting Member
Posts: 287
Rick Dorion
Loc: Accord, NY
Reg: 09-21-12
07-13-20 08:28 AM - Post#2798581    
    In response to Skeeters68

My Jeep box cost me about $75 with shipping. I'm very satisfied with the feel now that I have the car on the road. I used a stock PS pump.

1967 Belair - perfect floor, frame and pinchwelds. Oh boy.


 
astrojet427 
Member
Posts: 146
astrojet427
Loc: Vancouver, B.C.
Reg: 11-22-05
07-27-20 08:34 AM - Post#2799659    
    In response to Rick Dorion

My son has a 70 Chevelle and is planning the swap.

A link to the details involved.

JGC steering box swap

Sometimes I like the nostalgic one finger steering, but I'm now starting to think quicker firmer road feel is the way to go. Will definitely change the driving dynamics and update the driving experience.

1967 Impala SS. 327-Turbo 400; 12 bolt-3.55 gears. A few photos of my '67.

1972 Corvette Convertible Mille Miglia Red 4 speed.

1963 Cadillac Eldo-Triple Black.


 
cware 
Poster
Posts: 82

Loc: Norman, Ok
Reg: 06-15-12
10-08-20 10:22 AM - Post#2805112    
    In response to astrojet427

What size are the pressure and return port on the Jeep box?

1966 Biscayne 2 door


 
Jonechev 
Senior Member
Posts: 818
Jonechev
Loc: Cottage Grove,Minnesota. ...
Reg: 05-03-02
10-09-20 09:30 AM - Post#2805155    
    In response to cware

I did this swap a few years ago on my 66. I went the cheap route and got mine out of a local pick your part yard for $26. You need a rag joint for a 77-80 chevy or GMC C10. As for the hoses the jeep box uses a o-ring type line with a metric fitting. I bought the screw in adapters that screw into the jeep box and allow my original flared end hoses to be used. Think I paid like $15 for them. If you don't want to use the adapters you can have new hoses made with the correct ends on them.



 
Rick Dorion 
"7th Year" Gold Supporting Member
Posts: 287
Rick Dorion
Loc: Accord, NY
Reg: 09-21-12
10-11-20 03:19 AM - Post#2805234    
    In response to Jonechev

I also did what Jonechev did. But I had mine shipped for a total cost of $50! For me street use, it's the perfect solution.

1967 Belair - perfect floor, frame and pinchwelds. Oh boy.


 


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