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1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year => 1969 - 70 Shelby => Topic started by: ddonzella on June 16, 2015, 11:58:25 PM

Title: 69 Shelby Rear End
Post by: ddonzella on June 16, 2015, 11:58:25 PM
Have a 1970, (69) Shelby GT 350. How do I know if it is a 8 inch or 9 inch rear end and if it is a 28 or 31 spline rear end? Are all 69 Shelbys 31 spline 9 inch rear ends?

Thank you
Title: Re: 69 Shelby Rear End
Post by: 69GT350H on June 17, 2015, 12:05:40 AM
I'm going to say that all 69 Shelby's came with 9", and as its a GT350 its a 28 spline. If it were a GT500 it might have had a 31 spline as that is what my 69 Mach I 428CJ had. But I am sure there are others here that could give you a better answer. Thats why I love this place!   ;D
Title: Re: 69 Shelby Rear End
Post by: Brian Conway on June 17, 2015, 10:51:40 AM
The 8" and 9" differential/axle housings and axle shaft ends are configured differently.  If still in place the tag will have all the Information. A search in the 69-70 section may help or post a picture and someone will respond ?  This picture is of a 31 spline axle end.  Brian
Title: Re: 69 Shelby Rear End
Post by: ddonzella on June 17, 2015, 12:21:30 PM
Thanks!
Title: Re: 69 Shelby Rear End
Post by: 1970shelbyguy on July 31, 2015, 06:28:54 AM
on a 9 inch you can't acess btm bolts with a socket  - just "google" it.
Title: Re: 69 Shelby Rear End
Post by: Bob Gaines on July 31, 2015, 08:11:37 PM
Have a 1970, (69) Shelby GT 350. How do I know if it is a 8 inch or 9 inch rear end and if it is a 28 or 31 spline rear end? Are all 69 Shelbys 31 spline 9 inch rear ends?

Thank you
All 69/70 Gt350's had a 9 inch rear end . 69/70 GT350 had 28 spline rear axles and GT500 had 31. I hope this helps.
Title: Re: 69 Shelby Rear End
Post by: J_Speegle on August 01, 2015, 12:46:14 AM
Have a 1970, (69) Shelby GT 350. How do I know if it is a 8 inch or 9 inch rear end and if it is a 28 or 31 spline rear end? Are all 69 Shelbys 31 spline 9 inch rear ends?

Guess the easy DIY would be to look at the restoration thread of the G350 on this site and see if yours matches what was shown in those pictures ;)

Another way to identify the difference is the machined sections/surfaces of the third member housing since you can often get a deep socket on every bolt - just not always perfectly inline with the stud


Might help with a number of your  questions