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View Full Version : what gearbox is better for p40 engine ,5 speed or 4 ?



88102791
13th December 2012, 07:20 PM
do i have to change any thing so i can use the 5 speed transmission ?

growler2058
13th December 2012, 07:38 PM
I believe the tail/prop shaft lengths are different
A 5 speed will give you better highway driving

MQ MAD
13th December 2012, 09:20 PM
5 speed has overdrive, thats the only difference,except the SD 33 n/a and SD33 T has a different first gear
The 5 speed box is around 100 mm odd longer,so longer front shaft and shorter rear

Mr. Zero
22nd May 2015, 01:37 AM
I'm curious if I can manage an SD33 transmission swap on my 1969 KL60. Can someone tell me if the bell housings of the P and P40 are the same?