Not sure about the '67-72's, but the GMC's had 3.54's (Dana/Spicer 44) in
the '62-'66 range of years...leaf springed rearend (10bolt). Weren't the
'67-72's coil spring rears?
Mike
> [Original Message]
> From: Jay Baker <jaybaker@ruralnetwork.net>
> To: <oletrucks@autox.team.net>
> Date: 1/15/02 4:45:25 PM
> Subject: [oletrucks] rearend questions
>
> I found what I think may be a good rearend candidate for my 38 1/2 it's
out of
> a 70GMC I think at least it was in the back of it and has a 6 bolt
pattern. I
> tried looking up 67-72 axle codes on American classics and the only 3.54
ratio
> rear ends were in 3/4 tons ? I guess the short version is what do
> I Have or almost have I haven't picked it up yet it has a tag on it
#5352557
> 46-13 3.54
> I'm assuming a 3.54 ratio it is also 10 bolt and for my application is
> probably stought enough (mild 235 buildup)
> it's 51" backing plate to backing plate . approx 62" hub to hub
> 46" from the outside of spring perches
> this way I don't have to change the front end to IFS and get the higher
Ratio.
> I also plan on using a s10 5 speed at some point to get OD so does this
sound
> like a good Way to go before I waste my $60 any Info would be appreciated
.
> As this was not installed in truck but laying in the back I'd like to do
a
> little more checking to see exactly what it is. any Ideas?
>
> Thanks Jay Baker
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
--- Mike
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