I need an input shaft for a '65 ST300 in my '65 Gran Sport. Are the shafts interchangeable from '64 Pontiac ST300 to '65 Buick ST300? I have not a clue about auto trans.
I have a '66 Skylark GS trans. complete with original converter. $350.00 & you could take a road trip to Ct. & pick it up. Tom T>
Jim has a sticky here on ID'ing a sp: https://v8buick.com/index.php?threads/vp-converter-trans-visual-id-guide.143723/
Fixed Pitch on left, Switch Pitch on right. Focus on the stator splines. The stator splines on the fixed pitch shaft are twice as long as the switch pitch stator splines.
I have 2 -300 switch pitch trans you could one3 or both have for a very reasonable price.You might also need the torque converter ,just look at those splines also.And I have a 12 inch converter .
I have several torque converters with varying stalls. What are we talking on a trans? Are you close to gsfred?
You just have to be bit careful, here. Over the years and among the different makes, some are variable pitch, others not (fixed pitch). A variable pitch trans needs a variable pitch converter, and a fixed pitch trans needs a fixed pitch converter. No mixing of the two either way. Devon
As I stated,I have 2 switch pitch transmission and a 12 inch SP torque converter.We are talking about switch pitch trainy's,why would I sell you something different? And Fred does live near me[about 2 hours north.I live about 1/2 hour from NYC,he's close to 1.1/2 hours from NYC. Bruno.
Isn't the input shaft hollow on the SP? I thought there was a rod that travelled through it that activated the SP?
These transmissions are foreign to me. 4 speeds I understand. Automatics, I have no idea. That's why I'm thankful for everyone's help with this.
No, but fluid flows through it. I believe there is a piston concentric with the converter hub that is pressurized to move the stator blades. Maybe the Dynaflow had a mechanical linkage? Not sure.
Yes it is, 12 volts for high stall, take it away, low stall. http://www.buickperformanceclub.com/switchpitch.htm http://www.buickperformanceclub.com/SPTrans.htm