MJDiesel

Howdy everyone. I'm going to be jerking the transmission to replace the rear main sometime in the near future, as some of my earlier threads indicated. Since I am going to get an upgraded torque converter and the 1st gen flexplate is weak anyway, I am going to upgrade. First, I found a flexplate from a 99 my Dodge with the 24 valve. Will this work? Also, what are the torque specs on the flexplate bolts, and what kind of locktite should I use? I will appreciate any advise. Thanks!

ruquik

I would just spend the $100 for a brand new one from cummins, UNLESS you know EVERYTHING the truck has beed though

wannadiesel

The flexplate is no place to save a few bucks with a used one. It wouldn't seem like much of a bargain if you had to drop the trans again.

MJDiesel

What is the part number for the Cummins flexplate? And, again, will a 99 model 24 valve flexplate work? Also, what are the torque specs for the bolts?

kennedy

from the FAQ section: I just orded that flex plate from Cummins myself, by the time I paid taxes and shipping it was just under $130 to my door.

I'm not sure on the torque specs... actually, i'd like to know those myself...

bgilbert

I sure wouldn't use a used one.

MJDiesel

Just curious here, whats so bad about a used one? Is there a chance that it is out of balance, or cracked, or something like that?

BTW, thanks for the replys. I am going to check out a new flexplate as soon as I get to a Cummins dealership.

kennedy

As far as you first question, you don't want a used one because, Yes, Yes, and Yes.

Just get the one through Cummins.

A used one for a new truck could spell bad news there could be stress fractures in it that you can't see. The lock up converters put alot more stress on the flex plate.

Mcmopar

For a 2003, torque the flex to crank bolts to 55 ft/lb and the flex to TC should be 270 in/lb. This is per a 2003 Chrysler service manual.