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#1246216 12/09/2017 12:41 AM
Joined: May 2016
Posts: 56
C
Wrench Fetcher
Wrench Fetcher
C Offline
Joined: May 2016
Posts: 56
I've noticed in different articles , pictures showing different front crossmembers on 3100 ad chevys. The one that holds the radiator
What's the deal?? thanks in advance ,Charles


I just finished a 1946 chevy pickup street rod
now on a 1950 chevy 3100
.
also a GMC 220 with duals
and a 1948 chevy 2 ton
Joined: Sep 2001
Posts: 29,269
Bubba - Curmudgeon
Bubba - Curmudgeon
Joined: Sep 2001
Posts: 29,269
What article (s)?
What year 3100?

The Master parts catalog shows the the same frame front cross member for 47-54 (55st).

http://chevy.oldcarmanualproject.com/parts/1929_54/417.htm

Joined: Aug 2003
Posts: 106
Y
Shop Shark
Shop Shark
Y Offline
Joined: Aug 2003
Posts: 106
Do you mean the front crossmember for the GMC compared to the one for the Chevy? The two are different because the engines are different.


"I always win." Working mainly alone I do not let my trucks win a war. Maybe a battle here and there but never the war.

Robert
55.1 GMC 450 COE
51ish GMC Suburban
Joined: May 2016
Posts: 56
C
Wrench Fetcher
Wrench Fetcher
C Offline
Joined: May 2016
Posts: 56
The one on my frame is probably 10 inches wide in the middle I've seen pictures of them maybe 5 inches wide in the middle.


I just finished a 1946 chevy pickup street rod
now on a 1950 chevy 3100
.
also a GMC 220 with duals
and a 1948 chevy 2 ton
Joined: Sep 2001
Posts: 29,269
Bubba - Curmudgeon
Bubba - Curmudgeon
Joined: Sep 2001
Posts: 29,269
A labelled photo of Chevrolet A-D vs GMC ND frame front cross member is attached below (illustration compliments of Rob English).

Note: GMC 228/248/270/302 blocks/engines are longer than Chevrolet 216/235/261 blocks/engine (GMCers say this produces long-block-envy by Chevrolet stove-bolters).
Attachments
GMC_Chevy_FrontCrossmember.jpg (39.85 KB, 141 downloads)

Joined: May 2016
Posts: 56
C
Wrench Fetcher
Wrench Fetcher
C Offline
Joined: May 2016
Posts: 56
thanks for the help . A picture that I saw was where they narrowed the crossmember by removing the motor mount. thanks again


I just finished a 1946 chevy pickup street rod
now on a 1950 chevy 3100
.
also a GMC 220 with duals
and a 1948 chevy 2 ton

Moderated by  Gdads51 

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