Frame changes, automatic to manual +
Thread Starter
Burning Brakes
Joined: Mar 2004
Posts: 1,100
Likes: 2
From: Charlotte NC
Frame changes, automatic to manual +
I was curious, how hard is it to make a automatic frame into a manual one? Just the clutch Z bar pivot is the only difference, right? Is it just welded on?
Also, a 68 and 69 frame: I have a 68, and am looking at a 69 frame. My understanding is that the only difference (that matters) is the front frame horn extentions? Is this correct?
Now, to modify, do I need to extend the front frame horns, or can I just use 69-72 bumper extentions/brackets? I would assume that this would work, considering that the bumpre is the same.
Thanks in advance for your wisdom!
Cris
Also, a 68 and 69 frame: I have a 68, and am looking at a 69 frame. My understanding is that the only difference (that matters) is the front frame horn extentions? Is this correct?
Now, to modify, do I need to extend the front frame horns, or can I just use 69-72 bumper extentions/brackets? I would assume that this would work, considering that the bumpre is the same.
Thanks in advance for your wisdom!
Cris
Safety Car
Joined: Jan 2001
Posts: 3,637
Likes: 27
From: Norwalk Ct
There are two main differences on auto's and manuals.
1. The transmission cross member is bolt in for auto's, actually makes it easier for that auto to mnul conversion.
2. You have to weld the clutch cross bar mount onto the inner chassis rail below the brake power booster/master cylinder.
Not sure about the bumper part.
Nick
1. The transmission cross member is bolt in for auto's, actually makes it easier for that auto to mnul conversion.
2. You have to weld the clutch cross bar mount onto the inner chassis rail below the brake power booster/master cylinder.
Not sure about the bumper part.
Nick
Le Mans Master
Joined: Nov 2004
Posts: 6,128
Likes: 21
From: North Alabama
or you can buy the bolt-0n cross shaft hanger that they used in the 80-81's. I have an early weld on peice and a later bolt on peice. Haven't decised which way to go yet. Whether bolted or welded, the diminsions and heigth appear the same...
Team Owner
Joined: Jul 2004
Posts: 40,352
Likes: 787
From: Redondo Beach, California
Originally Posted by corvettecris
Also, a 68 and 69 frame: I have a 68, and am looking at a 69 frame. My understanding is that the only difference (that matters) is the front frame horn extentions? Is this correct?
Cris
Cris
I think the only difference between the 68 and 69 frame is that the early 68 frames were lacking a reinforcing gusset where the wheel arch is welded to the to the forward part of the frame.
All of the C3 frame changes throughout the years are discussed, with photos, in a corvettefac.com. article. I tried to find it, but the corvettefac server is just really slow right now.
