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Username Post: Stock radio - spacing of shafts        (Topic#339747)
75gmck25 
Contributor
Posts: 386

Loc: Alexandria, VA
Reg: 12-25-07
10-10-16 05:22 PM - Post#2655929    

The dash in my '75 GMC was cut to fit a DIN radio, but I want to put in a filler plate and convert it back to a more retro shaft-style radio.

To make the filler plate I need to know the spacing of the two radio shafts so it will match once I buy a new dash bezel. I've found one reference that said GM used a spacing of 6 1/4" up to 1972 in trucks, and then in '73 switched to 5 3/4" spacing in trucks. Then I found another doc that said the switch was not until 1977 for cars, and it did not even discuss trucks.

Could someone measure the shaft spacing on their radio or dash and let me know what it should be? I know that any 73-76 would be the same as my '75, and it may have been the same in all the years of the square body.

Thanks,

Bruce




 
Liberty Valance 
Contributor
Posts: 116
Liberty Valance
Loc: Euless,Texas
Reg: 07-21-14
10-21-16 10:53 AM - Post#2657650    
    In response to 75gmck25

My 74 C10 has a working AM/FM 8-Track stereo (old school). The spacing between the on/off shaft and the tuner shaft is 5 3/4". I noticed your post was on the 10th, maybe not too late for this info.

1974 Cheyenne 10 LWB 350/TH350/AC/4 BBL Quadrajet
Mopar by Birth
Chevy by Choice


Edited by Liberty Valance on 10-21-16 10:54 AM. Reason for edit: No reason given.

 
75gmck25 
Contributor
Posts: 386

Loc: Alexandria, VA
Reg: 12-25-07
11-01-16 03:33 PM - Post#2659517    
    In response to Liberty Valance

Thanks for the information. I found a couple other references, and the consensus seemed to be 5 3/4" for our trucks, which did match the new dash panel I purchased.

I have already installed a new Retrosound Hermosa radio, which was a little time consuming because their radios are so configurable, but everything went together very well.

Bruce



 
68Cam 
Member
Posts: 66

Loc: Des Moines, IA
Reg: 05-29-04
06-27-19 07:34 PM - Post#2769400    
    In response to 75gmck25

What do you mean when you say their radios are so configurable? My 77 Van shafts are 6 1/4 apart & I'm thinking of a retrosound M5F. So far I can not find the dimensions on their site.



 
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