Bad Info on Steering Boxes, My Apology (longish)
Bad Info on Steering Boxes, My Apology (longish)
Hey Gang,
This is the part of the board where I eat some crow.
Seems that I may have given you some bad info about possible other sources for steering boxes for manual conversions. Here's the thread https://www.thirdgen.org/techbb2/sho...hreadid=274455
I got a steering box for an 83 S-10, the Lares 1245. It bolted right in, the rag joint slipped right into place, and then when I went to hook up the pitman arm, I noticed that it slid right up the shaft with no resistance at all, and could spin from side to side without any problem.
I took a good look at the inside of the pitman arm, splines are all nice and sharp, and I recall it took a bit with the pitman puller to break it off the original box.
I suspect, but haven't confirmed yet, that the the size of the output shaft changed from the first to 2nd gen s10s. I did notice that the 1st gens (82-84) use only 3 bolts on the top of the steering box, and the 2nd gens (85-93) use 4, and look a lot more like our boxes. I'm going to exchange the box tomorrow, and let you know how it goes.
One other thing, that freaking box was 6 1/2 turns lock to lock!!!!.
I'm also going to go join an s10 forum, just for the purpose of asking those folks if what I suspect is true. I'm also going to contact the company that made the box, and just confirm that what I received is what I had requested. Occasionally the wrong part gets into the right box, so it's not totally out of reason.
Well, the beeper is going off on the microwave, so my portion of Heckle and Jeckle are done. Thanks for your time, and I hope to have some more info for you by tomorrow evening. I'm also going to check out the link that Stephen 87 IROC posted on my earlier thread, see if there is anything that I may have missed.
Steve
This is the part of the board where I eat some crow.
Seems that I may have given you some bad info about possible other sources for steering boxes for manual conversions. Here's the thread https://www.thirdgen.org/techbb2/sho...hreadid=274455 I got a steering box for an 83 S-10, the Lares 1245. It bolted right in, the rag joint slipped right into place, and then when I went to hook up the pitman arm, I noticed that it slid right up the shaft with no resistance at all, and could spin from side to side without any problem.
I took a good look at the inside of the pitman arm, splines are all nice and sharp, and I recall it took a bit with the pitman puller to break it off the original box.
I suspect, but haven't confirmed yet, that the the size of the output shaft changed from the first to 2nd gen s10s. I did notice that the 1st gens (82-84) use only 3 bolts on the top of the steering box, and the 2nd gens (85-93) use 4, and look a lot more like our boxes. I'm going to exchange the box tomorrow, and let you know how it goes.
One other thing, that freaking box was 6 1/2 turns lock to lock!!!!.
I'm also going to go join an s10 forum, just for the purpose of asking those folks if what I suspect is true. I'm also going to contact the company that made the box, and just confirm that what I received is what I had requested. Occasionally the wrong part gets into the right box, so it's not totally out of reason.
Well, the beeper is going off on the microwave, so my portion of Heckle and Jeckle are done. Thanks for your time, and I hope to have some more info for you by tomorrow evening. I'm also going to check out the link that Stephen 87 IROC posted on my earlier thread, see if there is anything that I may have missed.
Steve
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Joined: Jul 1999
Posts: 17,263
Likes: 168
From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
6-1/2 turns lock to lock is normal for a manual box. Since there's no power assist, you need the torque multiplication with more turns. There are only a couple of early manual boxes with a quick ratio. Mostly in things like early Corvettes.
I could have told you the 3 bolt top cover boxes had a smaller sector shaft. I wasn't aware that the early S10's used that box. I assumed they were all the 4 bolt cover. I thought GM stopped using the 3 bolt, small sector shaft steering boxes in the late 70's.
I could have told you the 3 bolt top cover boxes had a smaller sector shaft. I wasn't aware that the early S10's used that box. I assumed they were all the 4 bolt cover. I thought GM stopped using the 3 bolt, small sector shaft steering boxes in the late 70's.
Steve,
Yea, the 82-84 S-10s used them. Since I've got one that's going back tomorrow, I'll get one for 85 up.
Really ticked me off a bit, get it mounted, get the input shaft installed, and when I went to put on the pitman arm I could tell that things weren't right.
Looks like I was wrong, I had gotten the impression from some of the threads that ANY S10 box was a replacement item, but just 'cuz it fits don't mean it will work.
The 6 or so turns makes sense, since you don't have power assist, you gotta get the multiplication of force from someplace.
I swear, I don't know why I let myself out of the house some days.
I should get the rest of the job knocked out tormorrow in that case, and then I'm off to Nashville to pick up my Currie 9 incher that arrived this afternoon.
Didn't mean to bust your chops in that other thread. I woke up in the middle of the night, and I'll blame it on that. I've gotten good advice from you before, and put some weight on what you say.
Later,
Steve
Yea, the 82-84 S-10s used them. Since I've got one that's going back tomorrow, I'll get one for 85 up.
Really ticked me off a bit, get it mounted, get the input shaft installed, and when I went to put on the pitman arm I could tell that things weren't right.
Looks like I was wrong, I had gotten the impression from some of the threads that ANY S10 box was a replacement item, but just 'cuz it fits don't mean it will work.
The 6 or so turns makes sense, since you don't have power assist, you gotta get the multiplication of force from someplace.
I swear, I don't know why I let myself out of the house some days. I should get the rest of the job knocked out tormorrow in that case, and then I'm off to Nashville to pick up my Currie 9 incher that arrived this afternoon.
Didn't mean to bust your chops in that other thread. I woke up in the middle of the night, and I'll blame it on that. I've gotten good advice from you before, and put some weight on what you say.
Later,
Steve
Senior Member
Joined: Jul 2003
Posts: 509
Likes: 0
From: Detroit, MI, USA
Car: '82 Trans Am
Engine: Blown 540 BBC
Transmission: TH475
Axle/Gears: Dana 60, 4.10 w/spool
Re: Bad Info on Steering Boxes, My Apology (longish)
Originally posted by Mentor58
I got a steering box for an 83 S-10, the Lares 1245. It bolted right in, the rag joint slipped right into place, and then when I went to hook up the pitman arm, I noticed that it slid right up the shaft with no resistance at all, and could spin from side to side without any problem.Steve
I got a steering box for an 83 S-10, the Lares 1245. It bolted right in, the rag joint slipped right into place, and then when I went to hook up the pitman arm, I noticed that it slid right up the shaft with no resistance at all, and could spin from side to side without any problem.Steve
Geeze, I guess that then I was 1/2 right? Seems that there are a few things that we have discovered.....
Have a good one.
Steve
- Not all S-10 boxes are the same
- Not all 3rd gens used the exact same boxes, 82-83 low performance for example
- Nothing replaces actually doing it.
- Learning experences bite
- Great help here on thirdgen.org

Have a good one.
Steve
Senior Member
Joined: Nov 2001
Posts: 870
Likes: 1
From: Savannah, GA
Car: 3
Engine: inboard
Transmission: underfloor
As far as I know first gen S10's are '82-'93, they weren't considered second gen until the body style changed in '94.
I installed a power steering box from an '84 Firebird in my '91 S10, the FIrebird pitman arm was identical to the S10's in length so I didn't bother trying to swap them.
Short of the V8 swap and the swap of the teeny 13 gallon fuel tank to the 20 gallon tank, the power steering swap is one of the best things I ever did to this truck.
Some good S series tech can be found at S-Series.org and V8S10.org
I installed a power steering box from an '84 Firebird in my '91 S10, the FIrebird pitman arm was identical to the S10's in length so I didn't bother trying to swap them.
Short of the V8 swap and the swap of the teeny 13 gallon fuel tank to the 20 gallon tank, the power steering swap is one of the best things I ever did to this truck.
Some good S series tech can be found at S-Series.org and V8S10.org
Trending Topics
Originally posted by eric17422001
As far as I know first gen S10's are '82-'93, they weren't considered second gen until the body style changed in '94.
As far as I know first gen S10's are '82-'93, they weren't considered second gen until the body style changed in '94.
For what it's worth, I put in the correct steering box on Saturday, it just slipped right in, everything bolted up tight, and one more task checked off the master project plan. Next step, probably pull the front control arms, get them sandblasted, paint them, new bushings and ball joints, change the engine mounts to solid, and put in the drag springs and struts. That will just about finish the immediate work on the front of the car, and then off to the back to put in the 9incher.
Enjoy,
Steve
Moderator

Joined: Jul 1999
Posts: 17,263
Likes: 168
From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
I almost found another manual S10 box in the junkyard today. Just as I climbed under the truck to start pulling the center link off the pitman arm I looked again at the steering box and thought it looked smaller than normal. I climbed back up again and saw the 3 bolts on the top cover. That's when I looked at the truck to see it was an 82. Doh! That's the first S10 I've seen with the early manual box. I've pulled about 10 late model boxes so far.
To my knowledge nobody wants the early manual boxes so I left it in the truck. The late boxes with the 4 bolt top cover I can easily sell on Ebay.
I have none available right now.
To my knowledge nobody wants the early manual boxes so I left it in the truck. The late boxes with the 4 bolt top cover I can easily sell on Ebay.
I have none available right now.
Last edited by AlkyIROC; Jan 22, 2005 at 06:31 PM.
TGO Supporter


Joined: Jul 2001
Posts: 4,991
Likes: 1
From: Cheyenne, Wyoming
Car: 1992 B4C 1LE
Engine: Proaction 412, Accel singleplane
Transmission: built 700R4 w/custom converter
Axle/Gears: stock w/later 4th gen torsen pos
yay, I put one in, switched the pitman arms (about half inch length difference but its important!

more about it here:
http://www.outlawperformance.com/ima...ds_steeringbox
or more about the whole project here:
http://www.outlawperformance.com/ima...stuff/progress
and the car here:
https://www.thirdgen.org/techbb2/sho...hreadid=207163
and
http://www.outlawperformance.com/my1...arodragcar.htm
more about it here:
http://www.outlawperformance.com/ima...ds_steeringbox
or more about the whole project here:
http://www.outlawperformance.com/ima...stuff/progress
and the car here:
https://www.thirdgen.org/techbb2/sho...hreadid=207163
and
http://www.outlawperformance.com/my1...arodragcar.htm
Last edited by B4Ctom1; Apr 23, 2005 at 06:34 PM.
Supreme Member

Joined: Oct 1999
Posts: 1,112
Likes: 1
From: W. Kentucky
Car: 83 Z-28
Engine: 406
Transmission: TH350
Axle/Gears: 3.70
Man, I'm glad I found this post. I just installed the 3 bolt top one tonight and the pitman arm didn't work just as you stated. The shaft was for sure too small. Should a person go with a different box or a non performance pitman arm from an early 80's camaro. Wait, I can use the same box with a different arm right?
TGO Supporter


Joined: Jul 2001
Posts: 4,991
Likes: 1
From: Cheyenne, Wyoming
Car: 1992 B4C 1LE
Engine: Proaction 412, Accel singleplane
Transmission: built 700R4 w/custom converter
Axle/Gears: stock w/later 4th gen torsen pos
it all depends on the arm size and splines
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