The 2nd gen flex plates do not look much, if any more, rugged to me. I have I worked on bunch of 1st and 2nd gen Cummins auto trucks and the OEM plates look the same to me.

What happen to ordering that SFI rated one that you posted earlier? That is what I put in my Ramcharger with what should be about a 500 HP P-pumped motor behind it.
That measured out to be thicker and looked rugged.

I also have a foot tall stack of OEM 1st and 2nd gen flex plates in my shop.

 

Exactly

 

Apparently theyre made with better, shot peened steel? That sfi plate sold on me and i read a bunch of reviews that the transmission needs to be shimmed back with it...
I'll keep your stack in mind if i cant find anything local soon

 

Appreciate that

 

Gone. It was from Suncoast. Here is a recent thread he doesn't name the part number or for sure the brand. https://www.cumminsforum.com/threads...stion.2591293/

 

I did a bunch of measuring when I install mine. In the one I got the thicker metal was "taken up" in the depth of dish of the flexplate. I did have to trim the rear locating tabs that center it, as they where curling off little bits of the adapter plate when I turned over the motor.

 

And youre sure that was the exact same one i posted the screen shot of?

 

I ordered it from Power Driven Diesel over a year ago. Looks like the same product.

 

You can see pictures of that flex plate installed on my motor before attaching the 47RH to the back of it on my 2wd pop top build thread.

 

Ahh, so you got a 2nd gen transmission. Thats probably why it fits since its made for 94-07. For the first gens the trans needs to be shimmed back. Or so i hear.

 

In the third post on this thread I said I used a 47RH with that flex plate.
I personally see NO difference in the shape, depth, thickness or size of the 1st gen to 2nd gen flex plates.

Sounds like you are letting a bit of internet lore make decisions for you.

 

Many companies do not list their parts work for the 1st gen, even though they do. The aftermarket does not cater to the 1st gen crowd as much as the production # are way less than the 2nd gens.

I ordered a transmission oil pan for a 47RH that fits on my 727 and A-518 too even though they are not listed for those transmissions on Georands website. Anybody who has owned a few 1st and 2nd gens KNOW that all the automatic Cummins transmissions use the same filter, pan and gasket, 727, A-518, 47RH and the 47RE.
They also use the same flex plate.
The major change in the 1st and 2nd gen auto over the years is the lock up converter that was added in the '94 model year with the 47RH. You can not swap around '89-93 converters with '94-98.0 converters.

 

You know, it really could be internet lore. I have read it alot though, all over the place. The 2nd gen flexplates are shot peened and treated, making them less prone to cracking. Supposedly.
I found a 2nd gen plate from a 98 20 mins from home for reasonable money, part # 3926565. It fit great and got my trans bolted right up.
BD's billet flexplate, among others, is listed for 94-07. I called them and they said it wouldnt work for a first gen.
Also, not sure if all 1st gens had that, but the 1st gen plate is a solid design, whereas the 2nd gen had holes in it. Didnt measure exactly but couldnt tell if it was any thicker than the 1st gen with the naked eye. My engine should be around 300hp, and i just got a stock rebuild on the trans. So if the flexplate is still the weak link, i hole it goes before my tranny does. If i ever feel like i need to upgrade my tranny, I will try something else for flexplate. I kindof just realized i dont need something rated for 1500 ft lbs of torque when i have a stock tranny.
Highly appreciate all the help and time from you guys. I always find it awesome how you guys are so willing to help a total stranger. I really hope to have my truck done and at carlisle next summer and get to meet some of you.
Thanks again

 

Check elsewhere.
My experience with BD is their products are sound... but have been weird/oblivious about application-specific and suitability details.

Google the old Diesel Power article featuring Project Rustbucket (an 89 D250).... there is/was a parts list... maybe a flexplate reference. A built 727 and Goerend TC were in the mix.
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