Steering Column Installation Help Please - 70 Roadrunner
#2086333
06/05/16 11:50 AM
06/05/16 11:50 AM
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Joined: Jul 2011
Posts: 977 Chicago
PurpleBeeper
OP
super stock
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OP
super stock
Joined: Jul 2011
Posts: 977
Chicago
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I converted my manual steering to power steering & the swap went OK, except the steering coupler wasn't fully engaged with the steering shaft ("pivot bushings" sticking out of coupler 1/4") and I got my steering wheel upside down.
I pulled the column out & turned the wheel right side up. I knocked out the coupler roll pin removed it & attached it on the end of the steering column shaft over the pivot. Now I can't get the shaft/coupler any closer than about 3" from the splines on the steering gear box. Does that steering shaft telescope? What am I missing? Thanks for the help!
70 Roadrunner convt. street car
440+6, NOS, 4-spd, SS springs
'96 Mustang GT convt. street car
'04 4.6 SOHC, NOS, auto, lowered
"Officer, that button is for short on-ramps"
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Re: Steering Column Installation Help Please - 70 Roadrunner
[Re: PurpleBeeper]
#2086345
06/05/16 12:03 PM
06/05/16 12:03 PM
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Joined: Dec 2003
Posts: 3,544 Lansing, MI
70gtx440dana
master
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master
Joined: Dec 2003
Posts: 3,544
Lansing, MI
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The column does telescope. However, it should have a nylon shear pin that keeps it at the proper length. It should only telescope if you bang/hit it hard enough to shear the pin.
70 Road Runner 383-4 4 speed FJ5 & black guts 70 Charger R/T 440-4 4 speed FJ5 & white guts
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Re: Steering Column Installation Help Please - 70 Roadrunner
[Re: tman]
#2086759
06/05/16 10:45 PM
06/05/16 10:45 PM
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Joined: Jul 2011
Posts: 977 Chicago
PurpleBeeper
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OP
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Wow, maybe that's it. Does anyone know what the difference is between the two steering couplers? Is the power steering coupler longer by any chance? Are the splines on the steering box side the same?
Last edited by PurpleBeeper; 06/05/16 10:46 PM.
70 Roadrunner convt. street car
440+6, NOS, 4-spd, SS springs
'96 Mustang GT convt. street car
'04 4.6 SOHC, NOS, auto, lowered
"Officer, that button is for short on-ramps"
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Re: Steering Column Installation Help Please - 70 Roadrunner
[Re: PurpleBeeper]
#2086772
06/05/16 11:23 PM
06/05/16 11:23 PM
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Joined: Aug 2007
Posts: 571 WA
tman
mopar
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mopar
Joined: Aug 2007
Posts: 571
WA
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Re: Steering Column Installation Help Please - 70 Roadrunner
[Re: PurpleBeeper]
#2086795
06/06/16 12:35 AM
06/06/16 12:35 AM
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Joined: Jul 2011
Posts: 977 Chicago
PurpleBeeper
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super stock
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OP
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Chicago
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Doing a little research, it seems like the diameter of the spline on the steering box is different (manual a larger diameter & power a smaller diameter). I guess there could be a long & a short power steering coupler. Does anyone know about this and/or have some lengths so I can compare vs. mine?
Also, I'm starting to think that maybe I did shear that nylon pin and the steering shaft collapsed in. If that was the case, how could I tell for sure? How do I fix that? THANK EVERYONE
70 Roadrunner convt. street car
440+6, NOS, 4-spd, SS springs
'96 Mustang GT convt. street car
'04 4.6 SOHC, NOS, auto, lowered
"Officer, that button is for short on-ramps"
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Re: Steering Column Installation Help Please - 70 Roadrunner
[Re: 1970_EK2AAR]
#2087345
06/06/16 08:48 PM
06/06/16 08:48 PM
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Joined: Dec 2003
Posts: 3,544 Lansing, MI
70gtx440dana
master
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master
Joined: Dec 2003
Posts: 3,544
Lansing, MI
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All 68-70 B body steering column shafts are the same length. The 1970 piece needed to be modified the accept the split pin for the "star" lock wheel.
Manual shafts are 44 1/2" end to end, if not collapsed. The part #244515, is labeled on the steering wheel end along with a white paint I/D marker. The length of the gear end is 7 1/4" from "spin-weld" to end. The manual coupler has a 3/4" splined hole.
Power steering shafts are 41 1/2" end to end and have a purple paint marker. The length of the gear end is 4 1/4" from the spin-weld to end. The P/S coupler has a 5/8" splined hole.
After retiring from Chrysler, I started Premium Interior Restoration, and have restored over 175 Mopar columns. I have lost track counting the amount of "modified columns" that I have restored/returned to O/E design intent.
Any one may pm me if you need info related to restoring your steering columns. Mike
Mike is your guy if you need one restored!!
70 Road Runner 383-4 4 speed FJ5 & black guts 70 Charger R/T 440-4 4 speed FJ5 & white guts
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Re: Steering Column Installation Help Please - 70 Roadrunner
[Re: PurpleBeeper]
#2087362
06/06/16 09:23 PM
06/06/16 09:23 PM
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Joined: Jul 2011
Posts: 977 Chicago
PurpleBeeper
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super stock
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OP
super stock
Joined: Jul 2011
Posts: 977
Chicago
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Well, here is more detail. It's originally a '70 4spd, manual steering car (no "quadrant" or shifter on the column). I bought a '70 power steering column from a 318 column automatic car (+ p/s pump, hoses, brackets & gear box). Since I didn't want the PRNDL "quadrant" on my 4spd car, I just took the steering shaft out of the power steering column and put it into my 4spd steering column. Everything seems to fit/function just fine.
Also...this car has had the front frame rails & k-member replaced, so there's no guarantee every dimension on the front is "dead on exact" to what it should be. And... this car was in a front end accident with this same column though nothing looks "collapsed" on it & the front end impact wasn't that bad. I mainly replaced the frame rails due to rust, but it was "tweaked" a little.
As I mentioned, I had the steering shaft/coupler engaged "almost" all the way (when I had the steering wheel upside down), but I couldn't get it to slide in that last 1/4". I tried & tried to push the column further forward to engage the shaft/coupler better, but the metal ring at the bottom of the column where it goes through the floor (2 bolts) was bottomed out (hit "nubs" on column & couldn't move forward any more). At the time, I just figured that I had the coupler pushed too far down on the steering box splines & I could just slip it back a 1/4", put the roll pin back in an everything would be kosher.
Now, with all the wiggling I can do by myself & the coupler already connected to the steering shaft & slid down towards the towards the end of the shaft so the pivots are "just barely" inside the coupler & the coupler won't even engage on the 1st spline of the steering box, let alone the second spline. I've got the mark on the coupler lined up with the missing spline of the steering box gear, but it doesn't even get close enough to mater. At first, I tried to leave the coupler on the steering box & slip the shaft/pivots into the end of the coupler, but I couldn't line it up alone & I was afraid of losing the pivots, even though I taped them a little bit in place. I may have to try it this way again???
So, I'm starting to wonder,"Did I shear off that nylon pin inside so my column is 2" shorter than it should be?" and also wondering, "Is the frame alignment off more than I thought in the steering box attachment area?" and for both questions, "How do I determine if this is going on & what do I do about it?" You guys have been very, very helpful (several of you) and I'm just hoping that one of you will say "Ahah!, check this or adjust that" All of your help is appreciated.
Last edited by PurpleBeeper; 06/06/16 09:28 PM.
70 Roadrunner convt. street car
440+6, NOS, 4-spd, SS springs
'96 Mustang GT convt. street car
'04 4.6 SOHC, NOS, auto, lowered
"Officer, that button is for short on-ramps"
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Re: Steering Column Installation Help Please - 70 Roadrunner
[Re: PurpleBeeper]
#2087516
06/07/16 12:41 AM
06/07/16 12:41 AM
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Joined: Jul 2011
Posts: 977 Chicago
PurpleBeeper
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super stock
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OP
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Posts: 977
Chicago
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I'm 99.999% sure I got the correct '70 b-body power steering column and the shaft is definitely shorter than the original manual steering shaft, but I never did measure it. The collar must be right because it fits the steering box splines, correct?
Maybe the car it came out of was in a bad front end accident & is partially collapsed? I got it from a salvage yard and that would explain a lot if it were collapsed 1"-2". Can that plastic pin be repaired/replaced if my shaft is collapsed? How? Exactly where is it located along the shaft? (I should remember that, but I don't)
70 Roadrunner convt. street car
440+6, NOS, 4-spd, SS springs
'96 Mustang GT convt. street car
'04 4.6 SOHC, NOS, auto, lowered
"Officer, that button is for short on-ramps"
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Re: Steering Column Installation Help Please - 70 Roadrunner
[Re: PurpleBeeper]
#2087578
06/07/16 05:30 AM
06/07/16 05:30 AM
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Joined: Oct 2006
Posts: 4,165 Florida
cataclysm80
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Florida
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Chrysler used to sell a repair kit for collapsed shafts. I have a picture of it around here somewhere. Pretty sure that it isn't available any more. Probably due to liability concerns.
People have repaired shafts in other ways.
Some people weld them solid, but that defeats the purpose of having a collapsible shaft, so it's not exactly recommended.
I've also heard of someone buying a small plastic bolt (look around the plumbing section of the hardware store) and then drilling and taping the shaft to accept the bolt. Screw it in and grind off the plastic head so that it's like having a new plastic shear pin.
I've even heard of several people who just pull it out to the right length and don't fasten it with anything. They say the tiny roll pin in the coupler will hold it in place. (not all couplers have that pin by the way) Sounds pretty sketchy to me, so I wouldn't recommend trying that.
Tav
Last edited by cataclysm80; 06/07/16 05:31 AM.
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Re: Steering Column Installation Help Please - 70 Roadrunner
[Re: PurpleBeeper]
#2089235
06/09/16 05:33 PM
06/09/16 05:33 PM
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Joined: Jul 2011
Posts: 977 Chicago
PurpleBeeper
OP
super stock
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OP
super stock
Joined: Jul 2011
Posts: 977
Chicago
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Thanks everyone..... yes, and this steering column was shipped UPS and we all know how that goes. I'm headed to the garage to work on this and I will break out the tape measure and see what I'm working with.
70 Roadrunner convt. street car
440+6, NOS, 4-spd, SS springs
'96 Mustang GT convt. street car
'04 4.6 SOHC, NOS, auto, lowered
"Officer, that button is for short on-ramps"
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