I'm not too familiar with the GMC's although we build "Rodded a 48 GMC" two
years ago. It was a basket case when we picked it up (no motor, trans or
rearend) so I'm not sure if you had an open driveline to begin with.
If you already have an open driveline then here's a list of donor rearends
that fit the width my 1950 1/2 ton Chevy truck:
(this are 5 lug rearends and require you to weld in new spring perches)
a) 68-72 Chevelle
b) 68 GTO
c) 69 Chevrolet
d) 69 Firebird
e) 71-73 Nova
f) 59-57 Chevy
If your looking to retain the 6 lug bolt pattern then look more towards the
1/2 ton trucks of the mid 60's to 1970.
I installed the 69 Chevelle posi in my truck and it's cruises 65 + without a
problem. It came with 3:08 gears.
About the disc brakes. It doesn't matter what speed you plan to drive at,
an upgrade to disc brakes would be a wise decision. Several vendors sell
complete kits to convert over to disc brakes for the straight axle.
1950 Chevrolet 3100
1950 Willys Jeepster
Yuba City, Ca
----- Original Message -----
Sent: Wednesday, May 24, 2000 9:46 AM
Subject: [oletrucks] 52 GMC rear end
> Morning Oletruckers,
> I am looking for some advice on a replacement drive line and rear end for
> 52 GMC long bed. I rebuilt the original 248 and have found that it is
> working way too hard at 60 miles per hour. Since I don't intend to do any
> towing with the truck I am looking for a ratio that will get freeway speed
> 60 - 65 without working the new engine so hard.
> Additionally, with that type of speed would it be a good idea to go to
> brakes on the front? If so is there a straight forward way of
> I've been on the list for about 4 wks and have enjoyed reading the
> and replys. I wish I had known about you folks 5 years ago when I started
> my old truck.
> Thanks for the help!
> Lake Elsinore, CA
> 52 GMC
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959