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View Full Version : What's the difference between the 4R70W and the 4R75W transmissions?


btvollmuth
02-01-2010, 02:40 PM
I know they upgraded the transmission in the 04 Marauders to the 4R75W. So what's the difference from the original one?
Blackmobile
02-01-2010, 03:49 PM
I know they upgraded the transmission in the 04 Marauders to the 4R75W. So what's the difference from the original one?

:rolleyes: XXX5X :rolleyes:
ctrlraven
02-01-2010, 03:56 PM
Does having a 4R75W make any difference when doing the J-mod compared to doing a 03 with a 4R70W?
bob6364
02-01-2010, 04:09 PM
:rolleyes: XXX5X :rolleyes:

Haha....Like ours goes to 75....you see...everyone else only go to 70 ours goes to 75 so we are 5 louda mate....
ntd
02-01-2010, 04:12 PM
I know they upgraded the transmission in the 04 Marauders to the 4R75W. So what's the difference from the original one?

A wave plate is used for the intermediate clutch. Plant ring gear and pump are different those are the main changes also I think there are also some other small items


Does having a 4R75W make any difference when doing the J-mod compared to doing a 03 with a 4R70W? Nope, when I did mine I drilled per the specs for a 4r70
gdmjoe
02-01-2010, 05:42 PM
As per the 2004 Marauder Overview ...

The 2004 Marauder also gets a new 4R75W heavy-duty, four-speed automatic transmission for greater efficiency and low-end torque. Other refinements include the addition of needle bearings and Teflon seals to a new 11.25-inch high-stall-speed torque converter with a one-inch clutch. The new transmission provides quicker upshifts and downshifts, and lets the driver "kick down" into first gear at a higher speed.
Darrin
02-01-2010, 07:08 PM
Just be aware that they are not interchangeable without a tune to account for the different ring gear 'hole' count for the OSS.

Darrin
merc
02-01-2010, 07:44 PM
Just be aware that they are not interchangeable without a tune to account for the different ring gear 'hole' count for the OSS.

Darrin

Tell me about it.
BUCKWHEAT
02-01-2010, 08:17 PM
Just be aware that they are not interchangeable without a tune to account for the different ring gear 'hole' count for the OSS.

Darrin

Hey, Darrin, with a tune in the 03 can the 4R75W be retrofitted into the 2003? Is it "easy" so long as I get a tune change? Anything else involved? Thanks. JB
Darrin
02-02-2010, 06:37 AM
It takes nothing but a very simple change in the tune.

Darrin