strut tower bar
Joined: Apr 2010
Posts: 12,605
From: Mentor, Ohio
Obviously, GM had a reason to have a 3400 specific STB. But looking at these 3100 and 3400 pics make me wonder, can you safely get away with a straight bar on a 3100/3400??
I'm guessing it's an issue of engine rock. If the engine rocks too much, it will knock into a straight STB.


I'm guessing it's an issue of engine rock. If the engine rocks too much, it will knock into a straight STB.


I think it would fit. If not you could maybe you could add a few spacers to get the clearance. Also if it does hit just once in a while maybe you could add a rubber bump stop of some start.
Joined: Apr 2010
Posts: 12,605
From: Mentor, Ohio
All random Google find 
As Chibi said, GM tends to enjoy re-using when possible (saves tooling up for something else).
But they are not always right. Look at the Monte spoilers. From 2000-2005, two different factory spoilers, two different bolt patterns to put on the trunk lids. 2006-2007, two different spoilers, ah, but ONE bolt pattern. I'm sure that changed saved some money

As Chibi said, GM tends to enjoy re-using when possible (saves tooling up for something else).
But they are not always right. Look at the Monte spoilers. From 2000-2005, two different factory spoilers, two different bolt patterns to put on the trunk lids. 2006-2007, two different spoilers, ah, but ONE bolt pattern. I'm sure that changed saved some money
















