Steering column interchange??

[Matt69olds]

Long story, hang with me!! I seem to recall asking this question before, but if I did I can’t find the thread.

Many many years ago, I bought a very well optioned wrecked Silverado. Over the winter, I transferred the power windows, power door locks, tilt steering column, delay wipers, sliding rear window and a few other things into my 81 GMC. I also recovered the seat, and replaced the ratty carpet.

Once I got everything back together I noticed the steering wheel is much closer to my chest than is comfortable. Since the Silverado was smashed up and undrivable, I have no clue if it was the same way as the GMC, but I have little reason to doubt that it was.

The GMC is in winter drydock for some much needed attention and upgrades. On of the things I’d like to address is the steering column. Are all square body column the same dimensions? Unfortunately, by the time I got the seat back from the upholstery shop and the truck driving, the original column was long gone. So I had nothing to compare to.

Does anyone know if a column from a 93 GMC would interchange? More importantly, what are the odd the top part is shorter? I haven’t actually compared them side by side, but it does appear that way. Just curious if anyone in readerland knows for sure.

 

[HotWheelsBurban]

Long story, hang with me!! I seem to recall asking this question before, but if I did I can’t find the thread.

Many many years ago, I bought a very well optioned wrecked Silverado. Over the winter, I transferred the power windows, power door locks, tilt steering column, delay wipers, sliding rear window and a few other things into my 81 GMC. I also recovered the seat, and replaced the ratty carpet.

Once I got everything back together I noticed the steering wheel is much closer to my chest than is comfortable. Since the Silverado was smashed up and undrivable, I have no clue if it was the same way as the GMC, but I have little reason to doubt that it was.

The GMC is in winter drydock for some much needed attention and upgrades. On of the things I’d like to address is the steering column. Are all square body column the same dimensions? Unfortunately, by the time I got the seat back from the upholstery shop and the truck driving, the original column was long gone. So I had nothing to compare to.

Does anyone know if a column from a 93 GMC would interchange? More importantly, what are the odd the top part is shorter? I haven’t actually compared them side by side, but it does appear that way. Just curious if anyone in readerland knows for sure.

The truck column is the same from '73-83. In '84 is when the box on the side for the infamous multi function switch started, but from what I recall of our square body Burbs ('79,'84, and '90, all with tilt column) the wheel seems to be about the same place on the early and later styles.
'93 would be a GMT400 column, and I believe they have different mounting on the floorboard and dashboard. Wiring harness is likely different too. The '88-'94 GMT400 trucks are similar to the square body trucks in the interiors, but I don't think they're that similar.

 

[Grit dog]

Long story, hang with me!! I seem to recall asking this question before, but if I did I can’t find the thread.

Many many years ago, I bought a very well optioned wrecked Silverado. Over the winter, I transferred the power windows, power door locks, tilt steering column, delay wipers, sliding rear window and a few other things into my 81 GMC. I also recovered the seat, and replaced the ratty carpet.

Once I got everything back together I noticed the steering wheel is much closer to my chest than is comfortable. Since the Silverado was smashed up and undrivable, I have no clue if it was the same way as the GMC, but I have little reason to doubt that it was.

The GMC is in winter drydock for some much needed attention and upgrades. On of the things I’d like to address is the steering column. Are all square body column the same dimensions? Unfortunately, by the time I got the seat back from the upholstery shop and the truck driving, the original column was long gone. So I had nothing to compare to.

Does anyone know if a column from a 93 GMC would interchange? More importantly, what are the odd the top part is shorter? I haven’t actually compared them side by side, but it does appear that way. Just curious if anyone in readerland knows for sure.

93? Seems small chance it would bolt up unless this is a thing.
Have an 86 tilt wheel and 77 no tilt. Steering wheel and seat are in identical location.

 

[legopnuematic]

Looks like 88-94 columns are still the basic Saginaw style column used on many, many GMs (and other makes too!). After 94 they went to the more modern styled column with the large plastic cover and such.

Picture of one from the net.

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