Hey guys,
I've tried searching for this several times but can't find an answer. I remember reading something about this years ago but can't find it now.

Will 2004 Double Cab Tundra 4x4 TRD springs fit on my '02 Access Cab 2WD?
It's time to replace my shocks and right now I'm running some Daystar poly 2.5" spacers on the front, but want to remove them. Any help?
Thanks!

I can tell you that they are a different length spring. They shock itself should be inner changeable. I pulled my 5100s off my 02 to put on my 05. The 05 spring was a good bit longer but the shock body was the same length.

Thanks for the reply. It's hard to find any info on this.
So would this make a difference in ride height?
Say 2.5" higher than stock?

I honestly have no idea. It's been about 4 years since I did this swap. I'd guess around 2" but not sure.

Ha, well we shall see. I just bought a used pair of '04 Double Cab springs with a Daystar lift installed already. I'll be sure to update, in case anyone else is curious.

Well I just got done installing the 4WD Double Cab Springs on my '02 Access Cab 2WD. It was a real PITA trying to find some spring compressors big enough for the 4WD Double Cab springs. These things are thick. I set them next to my stock springs and the stock springs are much thinner steel.
It seems like the 4WD Double Cab Springs on my truck, in addition to the Daystar 2.5" spacer lift, makes it sit even higher than it was before. I've had the Daystar Spacers on all along, but the Double Cab 4WD springs are definitely taller. It also rides stiffer. Not harsh, but it certainly is stiffer- feels kind of sportier if that makes sense.
Took me about 5 hours to do the swap. Hopefully it doesn't mess anything up like some steering knuckles or ball joints or something.

Nice. I know a few guys pair them with the 5100's for about a 3" total lift.

Unfortunately after having driven it around a few days, I'm going to have to remove the Daystar spacers and just see what happens when I use the DC springs alone. The springs in addition to the spacers make the suspension almost at full extension, so just going over a speed bump makes the suspension drop out with a loud BANG.
I would have gone with the 5100's, but I didn't want a stiff bouncy ride. Since you mentioned the KYB's were most similar to stock, I went with them.

They should ride nice without the spacers. Let us know how it goes.