Did you know:

[slammin.e28]

you must have missed something big...

because the g260 is a 5 speed gearbox.

Weren't we talking about how the Caddy ran a G260, but is now running a 6sp, and in if the G260 fit, why wouldn't a 6sp that took the G260's place in the Caddy fit on the back of an M50/2.

[Conki]

Not really necessary on any of the popular swap motors until you get to the S54. Engines that don't have a big top-end to take advantage of will likely be slower due to the extra shifting. There is a reason lots of fast drag cars use a powerglide, 1 shift.

More gears are oriented toward high-reving power plants, not engines with a healthy torque curve.

Hence a 7-spd DST in the new M3 due to 3600lbs and 295lb-ft of TQ.

Keep trolling away little one.

I really liked the gearing in my eta with a 3.73 LSD from 2-5. It needed a 6th on the highway, and I practically never used 1st. The Aisin AY-6 has similar gearing with an extra gear between 2nd and 4th (5th in the 6-speed), and it's 1st is even shorter, so with something like a 3.43 diff the dynamics would be pretty similar, with an extra gear for cruising on the HW.

[Kershaw]

starter is in the wrong place.
bellhousing is different.
driveshaft is different.

AND the 6 speed that comes in the cts is made by AISIN. which feel great when brand new, but are not durable units by ANY means.

[Julien]

80s lebarons also used getrags

[gtdragon980]

starter is in the wrong place.
bellhousing is different.
driveshaft is different.

AND the 6 speed that comes in the cts is made by AISIN. which feel great when brand new, but are not durable units by ANY means.

I was under the impression that Aisin-Warner was a reputable company with pretty reliable transmissions. The Aisin trans in my jeep is bulletproof!

[mrsleeve]

Starter pocket is on the wrong side.

EDIT: Also GM has used Getrag for some time, even in the FWD world. The shop car - 92 GP with 3.4DOHC has a G284 manual swap in it :)

my brother has a pallet of NEW 284 boxes for his fiero, its going to be a gear box eater once he gets a good tune on it

[E30 Wagen]

Not really necessary on any of the popular swap motors until you get to the S54. Engines that don't have a big top-end to take advantage of will likely be slower due to the extra shifting. There is a reason lots of fast drag cars use a powerglide, 1 shift.

More gears are oriented toward high-reving power plants, not engines with a healthy torque curve.

Hence a 7-spd DST in the new M3 due to 3600lbs and 295lb-ft of TQ.

Keep trolling away little one.

So, with the right diff ratio, could a built M20 capable of high revs take advantage of another gear?

It would be so cool to have a six speed bolted to a M20, even if the advantages it offered were next to nothing...

edit: could somebody please explain how to interpret these values?

M35 Getrag 260
3.830
2.190
1.400
1.000
0.810

M35 Getrag 260 (2003-2004 Cadillac CTS)
3.570
2.040
1.340
1.000
0.820

BMW E30
3.83:1
2.20:1
1.40:1
1.00:1
0.81:1

[Wiglaf]

I'd swap it. And leave the CTS motor attached.

[Pantless Spency]

derp.

[Holland]

You don't want that 2.8 Catera heap, trust me.

[Kershaw]

all the rx8s use aisin transmissions and have a crap ton of problems. im on my 2nd transmission. it has less than 15k and its already worn out. i cant shift above 7500rpm for 1-2 and 2-3. you can say its my shifting (it's not) but this is a widespread problem in the rx8 community. the shift forks are very weak and the synchros wear very quickly. :| the replacement cost me $3500 and it lasted me a year. im not putting a 3rd pos aisin in there. when in good order, they are omfgamazingshiftboxes. they just dont last.

maybe a t56 will be the replacement. attached to an ls1.

[Wiglaf]

ah. i must have been thinking of the CTS-V

[Conki]

edit: could somebody please explain how to interpret these values?

M35 Getrag 260
3.830
2.190
1.400
1.000
0.810

M35 Getrag 260 (2003-2004 Cadillac CTS)
3.570
2.040
1.340
1.000
0.820

BMW E30
3.83:1
2.20:1
1.40:1
1.00:1
0.81:1

They are the gearbox input-output ratios in each gear from 1st to 5th. In the E30 for example in 1st for every 3.83 crankshaft turns the drive shaft only turns once.