C6 Diff inside a C5 ... PFADT Mounts ?
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 3,426
Likes: 0
From: Toronto Ontario
C6 Diff inside a C5 ... PFADT Mounts ?
Hey fellas ! I am in the process of installing my turbo 400 conversion with C6 ZR1 differential in my twin turbo beast. I wanted to see if anyone has installed the complete C6 Differential conversion as the mounts are slightly off and will need to be modified.
I am using the C6 rear cradle, lower control arms, and everything seems bolt right up. The differential mounts are slightly off and I understand that PFADT had made some adjustable mounts to solve this issue. Does anyone have pictures ?
I am using the C6 rear cradle, lower control arms, and everything seems bolt right up. The differential mounts are slightly off and I understand that PFADT had made some adjustable mounts to solve this issue. Does anyone have pictures ?
Race Director
Joined: May 2005
Posts: 15,960
Likes: 21
From: West Norriton PA
St. Jude Donor '08
Hey fellas ! I am in the process of installing my turbo 400 conversion with C6 ZR1 differential in my twin turbo beast. I wanted to see if anyone has installed the complete C6 Differential conversion as the mounts are slightly off and will need to be modified.
I am using the C6 rear cradle, lower control arms, and everything seems bolt right up. The differential mounts are slightly off and I understand that PFADT had made some adjustable mounts to solve this issue. Does anyone have pictures ?
I am using the C6 rear cradle, lower control arms, and everything seems bolt right up. The differential mounts are slightly off and I understand that PFADT had made some adjustable mounts to solve this issue. Does anyone have pictures ?
I'm getting ready myself to do the conversion except I'm using and auto tranny and coil-overs so that I don't have to change the control arms, etc ..
Former Vendor
Joined: Feb 2004
Posts: 10,876
Likes: 8
From: Las Vegas NV
St. Jude Donor '06 & '12
We also sell them. They are a really nice piece.
They fit real snug, so you need to make sure when your installing them, that you position it just right. If not, It will seem a tad off. Also, make sure the nuts are slightly loosened, AND facing the diff. Loosening the nuts will allow the mounts to move just enough to position the studs in the hole.
I've had them in my car ever since I did the C6 conversion, without issue.
The changes they made, were to the poly bushings themselves. They were getting complaints that the bushings were to stiff, and causing harmonic noises. So they decided to offer 2 different interchangeable bushings. Now they have a race versin and a street version. But the mounts themselves are exactly the same.
**EDIT** Oh wait, I just realized you are trying to make the standard C6 mounts work. In order to do the conversion, you need to either modify the cradle to accept the C6 mounts, or spend the well worth 310.00 for Pfadts "Offset" mount. Its essentially exactly like their standard mount, just offset by a little more than an inch so it bolts right in.. Definately go with the offset mounts.
They fit real snug, so you need to make sure when your installing them, that you position it just right. If not, It will seem a tad off. Also, make sure the nuts are slightly loosened, AND facing the diff. Loosening the nuts will allow the mounts to move just enough to position the studs in the hole.
I've had them in my car ever since I did the C6 conversion, without issue.
The changes they made, were to the poly bushings themselves. They were getting complaints that the bushings were to stiff, and causing harmonic noises. So they decided to offer 2 different interchangeable bushings. Now they have a race versin and a street version. But the mounts themselves are exactly the same.
**EDIT** Oh wait, I just realized you are trying to make the standard C6 mounts work. In order to do the conversion, you need to either modify the cradle to accept the C6 mounts, or spend the well worth 310.00 for Pfadts "Offset" mount. Its essentially exactly like their standard mount, just offset by a little more than an inch so it bolts right in.. Definately go with the offset mounts.
Last edited by Jeff @ TPE; Jul 12, 2009 at 06:58 PM.
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Burning Brakes
Joined: Aug 2002
Posts: 949
Likes: 1
From: Cary Il
Got Rodney's C6/Z06 rearend in my 00 Coupe, just replaced the GM mounts with the PHADT mounts to firm up the launch. It can be done without doing anything but lowering the C6 cradle enough to clear the studs.
These PHADT mounts were a great addition to my FLT 4L60E, Yank TC, RPM Rear End, and ECS Driveshaft.
I went to the dragstrip to race in the IMSM Heads Up Index Series. I ended up in the semi finals. My runs were:
150.52, 150.35, 147.10, 150.93, 148.88, 151.56 lifting a bit on each run to run as close to 9.50 as possible. The launches were crisp and firm on my Hoosier Slicks. I ran a 9.40 breaking out in the semi finals.
JR
These PHADT mounts were a great addition to my FLT 4L60E, Yank TC, RPM Rear End, and ECS Driveshaft.
I went to the dragstrip to race in the IMSM Heads Up Index Series. I ended up in the semi finals. My runs were:
150.52, 150.35, 147.10, 150.93, 148.88, 151.56 lifting a bit on each run to run as close to 9.50 as possible. The launches were crisp and firm on my Hoosier Slicks. I ran a 9.40 breaking out in the semi finals.
JR
