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Lazooch
06-04-2018, 10:38 AM
I am pulling the 4r70w from my 03 Marauder. New torque converter, parking pall, and j mod to be done. While the transmission is out, I would like to freshen it up. Is there a recommended kit for clutches and steels? What else should I do while I’m in the transmission? I don’t have any crazy horsepower, but I do drive like a race car driver. What recommendations does everyone have on making this transmission bulletproof? Thanks in advance.
Grimrepairman
06-04-2018, 10:45 AM
Read the threads by 88grandmarq, he rebuilds the 4r70w. Lots of info and good pics.
musclemerc
06-04-2018, 12:02 PM
........................
musclemerc
06-04-2018, 12:03 PM
Bulletproof???????????
Gerry24
06-04-2018, 03:34 PM
Read the threads by 88grandmarq, he rebuilds the 4r70w. Lots of info and good pics.

^^^^:agree:^^^^
vkirkend
06-04-2018, 04:16 PM
Nothing is bulletproof......
loud2004marquis
06-04-2018, 05:06 PM
Nothing is bulletproof......

^^^Truth^^^
https://media1.tenor.com/images/466f3de8d7f786d260cd298cf08457 ed/tenor.gif?itemid=5263465
RubberCtyRauder
06-04-2018, 05:11 PM
Don't manually shift them and don't do WOT runs with it in OD. member 88grandmarquis can most likely offer info for internals to upgrade
Chayton
06-05-2018, 01:03 PM
Don't manually shift them and don't do WOT runs with it in OD. member 88grandmarquis can most likely offer info for internals to upgrade

What’s bad about manual shifting?
RubberCtyRauder
06-05-2018, 01:36 PM
What’s bad about manual shifting?

Zack listed it once why, I dont recall the exact. pm him
88grandmarq
06-07-2018, 07:28 PM
I am pulling the 4r70w from my 03 Marauder. New torque converter, parking pall, and j mod to be done. While the transmission is out, I would like to freshen it up. Is there a recommended kit for clutches and steels? What else should I do while I’m in the transmission? I don’t have any crazy horsepower, but I do drive like a race car driver. What recommendations does everyone have on making this transmission bulletproof? Thanks in advance.


I am curious to see how the parking pawl failed.

For stock power levels and daily driver use, a stock rebuild will work fine.

OEM frictions and steels are best - use a kit with Raysbestos clutches. do not use borg warner or alto clutches.

use one piece teflon sealing rings on the output shaft

replace the snap ring that holds the one way clutch to the reverse drum with an aftermarket spiral snap ring.
Lazooch
06-10-2018, 08:43 AM
Thank you 88grandmarq. Your input is greatly appreciated and very helpful. I’ll post pics of the parking pawl as soon as I get that far. Thanks again.