g28-05 Tranny Interchangeable with with 03?
#1
g28-05 Tranny Interchangeable with with 03?
I currently have g28-05 tranny in my 79. I believe this model year was from 82-84. However, I am looking at purchasing a rebuilt g28-03 tranny. Can anyone confirm this a drag and drop?
#5
Erkka,
How much of the rear subframe needs to be changed? I know the torque tubes are different lengths, (2mm or so?) but I thought there was enough adjustment in the transmission mounts to make up the difference?
Reason I ask is because my 1980 model built in late '79 has an 05 transmission rather than the 03 it should. From the rest of the work on the car, something tells me the torque tube and subframe did not get changed at the same time.
How much of the rear subframe needs to be changed? I know the torque tubes are different lengths, (2mm or so?) but I thought there was enough adjustment in the transmission mounts to make up the difference?
Reason I ask is because my 1980 model built in late '79 has an 05 transmission rather than the 03 it should. From the rest of the work on the car, something tells me the torque tube and subframe did not get changed at the same time.
#6
Andrew, I think your left from factory with 05 unless it is very early '80. Last US car to have 03 and longer TT was 92882 00054. Factory did 1589 or close to this number '80 US models. This means only first two weeks of model year production uses old transmission type.
Difference in TT outer shafts is 30mm or very close to it. Transmission mounts do not have any play in them but subframe has some. Still I think its way too little. I might be possible to force the difference from both engine and transmission mounts together but it will not be healthy for them. Then there is 10mm difference in clamp bolt groove posiotion in TT center shaft. Thos 10mm is really only thing which needs to be changed. Its possible to do groove for clamp bolt on center shaft while shaft is in the tube. So change is not impossible.
Difference in TT outer shafts is 30mm or very close to it. Transmission mounts do not have any play in them but subframe has some. Still I think its way too little. I might be possible to force the difference from both engine and transmission mounts together but it will not be healthy for them. Then there is 10mm difference in clamp bolt groove posiotion in TT center shaft. Thos 10mm is really only thing which needs to be changed. Its possible to do groove for clamp bolt on center shaft while shaft is in the tube. So change is not impossible.
#7
I am a bit confused by this. Mark A. advised when I bought the GT transmission it would bolt in to my '80 Euro S chassis using the existing TT. He knows what transmission is in the car since it was rebuilt through 928 Intl and he has the records.
So does this mean the GT transmission will not bolt in to my '80 Euro S chassis with it's current TT?
So does this mean the GT transmission will not bolt in to my '80 Euro S chassis with it's current TT?
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#8
Originally Posted by Stan.Shaw@Excell.Net
So does this mean the GT transmission will not bolt in to my '80 Euro S chassis with it's current TT?
#10
Erkka-
Thanks for the information. I thought I read in the service manuals that my car should have come with an 03 transmission, but it has a 92A VIN number, so according to you, the 05 currently in place is stock. Good to know.
Thanks for the information. I thought I read in the service manuals that my car should have come with an 03 transmission, but it has a 92A VIN number, so according to you, the 05 currently in place is stock. Good to know.
#11
Originally Posted by Vilhuer
Andrew, I think your left from factory with 05 unless it is very early '80. Last US car to have 03 and longer TT was 92882 00054. Factory did 1589 or close to this number '80 US models. This means only first two weeks of model year production uses old transmission type.
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The WSM (30-01, 02) indicate that the last 1980s were made on 13 June, 1980 ... and the '05' trans was introduced with the 1981 models starting after that same date.
#12
Originally Posted by Garth S
Interesting - by looking at the rear trans cover, my '80 appears to have an '03' version ( studs vs. bolts in the cover). With a manufacture date of 06/80, this car appears to be a very late 1980 .... and the VIN is 92 A08 115xx. Maybe the last '80
The WSM (30-01, 02) indicate that the last 1980s were made on 13 June, 1980 ... and the '05' trans was introduced with the 1981 models starting after that same date.
The WSM (30-01, 02) indicate that the last 1980s were made on 13 June, 1980 ... and the '05' trans was introduced with the 1981 models starting after that same date.
Possibly some very late '80 MY use 05 already as there is TT and subframe listed for '80 05 in PET.
#13
Originally Posted by Stan.Shaw@Excell.Net
Yes, you are right. My error. Mark's note was:
"I see the rebuilt trans we sent you is a 28:05 so it would use the same torque tube, shifter and cross member as the 80-95 cars."
"I see the rebuilt trans we sent you is a 28:05 so it would use the same torque tube, shifter and cross member as the 80-95 cars."
#15
Originally Posted by Stan.Shaw@Excell.Net
Yes Brad, it should be a 28-05. Sorry for the confusion. I will crawl under and check, but I presume Mark A's records would be correct
Last edited by checkmate1996; 12-07-2006 at 12:44 AM. Reason: wrong font4