Are all Getrag 265 5 speed transmissions the same?

neuropel · 06-30-2006

Can anyone tell me if a Getrag 265 from another make (i.e. BMW) will work as a straight bolt-on with the Opel 6 cylinder CIH Getrag 265 bellhousing? In other words, are all 265s created the same? The reason I ask is that I believe the 265 transmissions can be found in the US, and it'd be MUCH cheaper to ship a bellhousing from Europe to the US than a combo 265 tranny/bellhousing.

Anyone know of an available 265 tranny in the states?
Todd

RallyBob · 06-30-2006

My understanding is the 265's installed in BMW's use a different speedo drive (no big deal really) and a different driveshaft type (rubber guibo joint). So making a driveshaft might be an issue, since there's no u-joint at the front of the driveshaft.

neuropel · 04-09-2007

<bump>

Are the issues Bob mentions here show stoppers? Curious if anyone has tried an Opel bellhousing onto a BMW transmission?

Todd

PS - I had to look up what a guibo joint was. Learn something new EVERY day!

nobody · 04-10-2007

The shifter for a 265 is quite a bit further back and it has a single casting front end like a 240. Break out the mig and the tig and all sorts of saws. If I'm wrong about that please let me know about a BMW not having the starter on the other side. As for the rear driveshaft output if you have a disk made to adapt the drive shaft to the bigger of the BMW bolt circle mounting plates. You can use a stock driveshaft after it's trimmed down and welded and rebalanced.

GTJim found a shifter adapted for a GT with pics and a few dimensions on German Ebay. It hits on center 1/2 inch further back

Oh and the 265 would sit about 2 inches taller in the front of a GT at the firewall area. About the same height or just under what a stock motor mount measures. The driveshaft length for a GT is a cut just before the front U joint for a GT if the mounting flange you have made is 3/8 inch thick. This is for a GT so adjust as needed for other models.

jordan · 04-10-2007

I look up more words that bob posts than anyone else, this guibo joint is new to me as well.....and nurburgring......and Zugstrebe.

nobody · 04-10-2007

The guibo for a 265 is about 2 inches thick and uses 2 sets of 3 bolts to bolt in either direction and would be an all new idea that would take both the BMW driveshaft and a GT one. It also requires the driveshaft carrier from a BMW since it has no front U joint then. Might take a bit more tunnel changes to make that fit up. The 265 guibo is a rubber dampening ring with steel collars for all the bolts so it'a a hard mount basicly and then you get to align both the tranny and motor to the carrier and then the rear diff.

BTW the guibo, shaft and carrier runs about 325 bucks and the design work is about 100 hours if you do it yourself. A shifter alone is 125 if you slip up on it too. I forgot to mention there is one 265 crated up for a GT and another out for a bit of work plus a pair of 240s here. I don't have a 4 speed anymore, worth saving at least.

nobody · 04-10-2007

Oh, I amost forgot the clutch issues with the 265 for an Opel. The clutch stud and carrier for the the throw out bearing...they are both too short to use unless you find a 2.4 clutch and flywheel. The 265 has a fixed clutch stud so you would need to fix that as well as the carrier length being about an inch short....that 2.4 clutch package alone is 72 pounds, and the 2.4 tranny is around 80 pounds vs the 46 for a 4 speed. So build for the added weight.

hrcollinsjr · 04-10-2007

Originally Posted by nobody

..and then you get to align both the tranny and motor to the carrier and then the rear diff.

IRS also needed???

Harold

nobody · 04-10-2007

Yes Harold, I looked into the rear diff question and almost any missalignment will tear up the driveline. Same as your rear diff shifting angle with a standard rear like all the US Opel models I've seen do unless the alignment I mentioned is done very well. OK some good news. If you do the adapter plate you don't have to double your cost and you have only a single cut and rebalance of the drive shaft and it's almost as long as stock so balancing is pretty easy to get done. The 265 actually uses a longer drive line than a 240, go figure.

nobody · 04-17-2007

While I'm thinking about it I might as well give the dimensions for a 265 adapter plate.

5 inch round, turned flat and parralel to 9.7mm thick.
16mm through hole on center for the stud on the output.
3, 11.85mm holes at 120 degree intervals at 48mm centers from the center of the plate.

06-30-2006	#1 (permalink)
neuropel Rice Cooker Join Date: May 2002 Location: Spring Church, PA Posts: 1,787	Unanswered: Are all Getrag 265 5 speed transmissions the same? Can anyone tell me if a Getrag 265 from another make (i.e. BMW) will work as a straight bolt-on with the Opel 6 cylinder CIH Getrag 265 bellhousing? In other words, are all 265s created the same? The reason I ask is that I believe the 265 transmissions can be found in the US, and it'd be MUCH cheaper to ship a bellhousing from Europe to the US than a combo 265 tranny/bellhousing. Anyone know of an available 265 tranny in the states? Todd __________________ "In the end, it's not the years in your life that count. It's the life in your years." -Abraham Lincoln ________________ 1972 GT 2.4L 1974 Manta GT/E 2.2L 1973 Manta Rallye 2.5L

04-09-2007	#3 (permalink)
neuropel Rice Cooker Join Date: May 2002 Location: Spring Church, PA Posts: 1,787	<bump> Are the issues Bob mentions here show stoppers? Curious if anyone has tried an Opel bellhousing onto a BMW transmission? Todd PS - I had to look up what a guibo joint was. Learn something new EVERY day! __________________ "In the end, it's not the years in your life that count. It's the life in your years." -Abraham Lincoln ________________ 1972 GT 2.4L 1974 Manta GT/E 2.2L 1973 Manta Rallye 2.5L

04-10-2007	#5 (permalink)
jordan Moderator Join Date: Mar 2003 Location: corning ny 14830 Posts: 2,182 Provided Answers: 1	I look up more words that bob posts than anyone else, this guibo joint is new to me as well.....and nurburgring......and Zugstrebe. __________________ 1970 Opel GT 1.9 1980 Moto Guzzi V50 2000 Saab 9-3 2.0 turbo 2000 KTM 200 exc STOLEN

04-10-2007	#6 (permalink)
nobody No Access Join Date: Nov 2003 Location: in transit Posts: 3,873 Provided Answers: 1	The guibo for a 265 is about 2 inches thick and uses 2 sets of 3 bolts to bolt in either direction and would be an all new idea that would take both the BMW driveshaft and a GT one. It also requires the driveshaft carrier from a BMW since it has no front U joint then. Might take a bit more tunnel changes to make that fit up. The 265 guibo is a rubber dampening ring with steel collars for all the bolts so it'a a hard mount basicly and then you get to align both the tranny and motor to the carrier and then the rear diff. BTW the guibo, shaft and carrier runs about 325 bucks and the design work is about 100 hours if you do it yourself. A shifter alone is 125 if you slip up on it too. I forgot to mention there is one 265 crated up for a GT and another out for a bit of work plus a pair of 240s here. I don't have a 4 speed anymore, worth saving at least. Last edited by nobody; 04-10-2007 at 03:02 AM.

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04-10-2007	#4 (permalink)
nobody No Access Join Date: Nov 2003 Location: in transit Posts: 3,873 Provided Answers: 1	The shifter for a 265 is quite a bit further back and it has a single casting front end like a 240. Break out the mig and the tig and all sorts of saws. If I'm wrong about that please let me know about a BMW not having the starter on the other side. As for the rear driveshaft output if you have a disk made to adapt the drive shaft to the bigger of the BMW bolt circle mounting plates. You can use a stock driveshaft after it's trimmed down and welded and rebalanced. GTJim found a shifter adapted for a GT with pics and a few dimensions on German Ebay. It hits on center 1/2 inch further back Oh and the 265 would sit about 2 inches taller in the front of a GT at the firewall area. About the same height or just under what a stock motor mount measures. The driveshaft length for a GT is a cut just before the front U joint for a GT if the mounting flange you have made is 3/8 inch thick. This is for a GT so adjust as needed for other models.

04-10-2007	#7 (permalink)
nobody No Access Join Date: Nov 2003 Location: in transit Posts: 3,873 Provided Answers: 1	Oh, I amost forgot the clutch issues with the 265 for an Opel. The clutch stud and carrier for the the throw out bearing...they are both too short to use unless you find a 2.4 clutch and flywheel. The 265 has a fixed clutch stud so you would need to fix that as well as the carrier length being about an inch short....that 2.4 clutch package alone is 72 pounds, and the 2.4 tranny is around 80 pounds vs the 46 for a 4 speed. So build for the added weight.

04-10-2007	#9 (permalink)
nobody No Access Join Date: Nov 2003 Location: in transit Posts: 3,873 Provided Answers: 1	Yes Harold, I looked into the rear diff question and almost any missalignment will tear up the driveline. Same as your rear diff shifting angle with a standard rear like all the US Opel models I've seen do unless the alignment I mentioned is done very well. OK some good news. If you do the adapter plate you don't have to double your cost and you have only a single cut and rebalance of the drive shaft and it's almost as long as stock so balancing is pretty easy to get done. The 265 actually uses a longer drive line than a 240, go figure.

04-17-2007	#10 (permalink)
nobody No Access Join Date: Nov 2003 Location: in transit Posts: 3,873 Provided Answers: 1	While I'm thinking about it I might as well give the dimensions for a 265 adapter plate. 5 inch round, turned flat and parralel to 9.7mm thick. 16mm through hole on center for the stud on the output. 3, 11.85mm holes at 120 degree intervals at 48mm centers from the center of the plate.

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