C4 D44 swap into c3 frame
Tech Contributor
Joined: Jun 2004
Posts: 20,905
Likes: 962
From: I tend to be leery of any guy who doesn't own a chainsaw or a handgun.
hmm, never thought of doing that to the frame but i might as of now i think i have like 2-3 inches of room at my desired ride height. (I think frame is around 6 inches from ground)
Onto the rear diff, I dont mind doing all the cutting and aluminum welding ad thats no problem for me. I might do it if I blow up my aluminum diff. Just not sure how hard I can beat on it. Not planning on launching the car much but burnouts and very spirited driving yes.
For instant center time not sure what to do yet. Going to have 3 different settings to mount the dogbones but just need to figure out where I should have it stock. Was thinking the bottom arm being parallel to ground and then top arm down at a slight angle. Best for road racing and autocross i think. (Still learning alot about suspension)
Onto the rear diff, I dont mind doing all the cutting and aluminum welding ad thats no problem for me. I might do it if I blow up my aluminum diff. Just not sure how hard I can beat on it. Not planning on launching the car much but burnouts and very spirited driving yes.
For instant center time not sure what to do yet. Going to have 3 different settings to mount the dogbones but just need to figure out where I should have it stock. Was thinking the bottom arm being parallel to ground and then top arm down at a slight angle. Best for road racing and autocross i think. (Still learning alot about suspension)
Just for clarification, I am not trying to steer you towards retaining your C3 differential. As I mentioned earlier, I retained the C3 differential because of its strength and fitment without cutting up the under bodywork.
And regarding the anti-squat, perhaps I may be misunderstanding your description/geometry, but it seems to me that you would be adding pro-squat with that arrangement, ending up with the same issue as a stock C3. Correct me if I'm misunderstanding you.
7th Gear
Joined: Jan 2026
Posts: 7
Likes: 1
From: OH
Once you get ready to start cutting and welding, might I suggest you start a new thread in the C3 Tech section. I appreciate the patience of the C4 members here while we discuss C4 suspension items.
Just for clarification, I am not trying to steer you towards retaining your C3 differential. As I mentioned earlier, I retained the C3 differential because of its strength and fitment without cutting up the under bodywork.
And regarding the anti-squat, perhaps I may be misunderstanding your description/geometry, but it seems to me that you would be adding pro-squat with that arrangement, ending up with the same issue as a stock C3. Correct me if I'm misunderstanding you.
Just for clarification, I am not trying to steer you towards retaining your C3 differential. As I mentioned earlier, I retained the C3 differential because of its strength and fitment without cutting up the under bodywork.
And regarding the anti-squat, perhaps I may be misunderstanding your description/geometry, but it seems to me that you would be adding pro-squat with that arrangement, ending up with the same issue as a stock C3. Correct me if I'm misunderstanding you.
