My truck: 1954 3600
I have a GM NOS TAILPIPE
GM # 3.705 - GM # 3696161

http://i669.photobucket.com/albums/...eNOSGMChevyTruck1954bbbb_zps7708dc41.jpg


The tailpipe is 100% GM # correct
for my truck.
It is number stamped
on the tailpipe.
Tailpipe fits perfect
on the correct GM NOS muffler
that I have
GM # 3.701 - GM # 3693710 .

http://i669.photobucket.com/albums/...1_/MUFFLER1954ChevGMNOSb_zps912a02f5.jpg

I.D. measurement of the
tailpipe is: 1.825 "

Your 1 & 1/2 " tailpipe @ 1.500 "
is quite a bit smaller than
the original pipe.

I think this info answers your question.

George
in
New Jersey

Last edited by '54 3600; 04/22/2014 11:18 PM. Reason: addition
1954 3600
A big help to many on the Bolt
Now cruising in
The Passing Lane