The end back by the back of it has a tab that slides under a slot. There there are 4 snap in clips and also double sided tape in the front and back. The first tab I mentioned gets broken off quite often and the 4 tabs can get bent over or crushed pretty easy.

 

Here are some pictures to show how they are held on from the underside
The 4 clips that push into the slots in the body. These have small places on the inside edge to let you know where they are in the first picture. Toward the interior is the area with the half circle in blue. You can slide a plastic pry tool under and push on the tab and it will pop up then.

After you release all 4 push it toward the back of the truck to get the rear clip to unhook( circled in red) .
There is also the 2 sided tape on them blue retangle.

That rear clip breaks quite often and I have put them back on with out those and also with out replacing the 2 sided tape because I figured I would have them off again and they stay in place with no problems. The disclaimer is I take my truck back apart quite often and the average person probably won't so replacing the 2 sided tape my be better for them

 

Thankyou very much for that complete description

 

The rear clips are easy. The 3 "clips" in the middle of the threshold are collapsed, or pulled to the outside of the truck, and then they lift off. I took a piece of 2" wide aluminum strap and cut a slot in it to reach around the clip and pull it, and they come right up. A friend of mine used a painter's tool with a similar slot in it.

 

And if you break one or have one messed up not to worry I think I have a couple sets of them.

 

Thanks all for the help , I got a set of the domed letter insert with the chrome SS letters and chrome strips and the red R , it will be easer to do with them removed so I don’t mess them up when I install the letters

 

Here's my opinion: Install them with the thresholds on the truck. You're going to have to slightly bend the covers with the thresholds to reinstall them on the truck. I've installed a couple. You can clean the threshold surface and get it all nice and ready for the double back, and not have to worry about deforming it all during re-installation. I'm suggesting this, as I had to remove the thresholds with the GM threshold covers attached to install molded running boards on both of my trucks.

 

Where did you get the letter inserts from?

 

I got them from our member (straycat) , that was the only set he had

 

Thanks anyway, if you hear of anyone that has any please let me know

 

@Stickman05$ I can tell you what all comes off. Starting on the inside you have to remove the sill plates because there are screws that mount the new rocker moldings to the body that need to be drilled. To get them off I removed the covers that go between the sill plates and the carpet and also the lower kick panels. Remove the push in pin that holds the kick panels to the panel between the carpet and the sill plates.

On the outside you will remove the front fender extensions, the rocker molding and the rear fender guards. Of course if you have running boards those will come off first. To get the rocker moldings off you have to remove the fasteners on the lower inner fender wells both front and back. There are brackets with studs holding the factory stuff in place and use nuts all 10mm if memory serves correct. Putting the new ones back on you can spend a lot of time making the original brackets fit with cutting and grinding on them or use bolts and washers in their place. I was going to make the stock brackets fit but after all the grinding I would have needed to do I would have had to have them replated or painted them so I just went with some factory bolts with washers on them already and nuts.

Depending on how the paint is on the fenders under the rear rock guards that area may need attention and leave it up to the body shop to make that call. My Blur had some not so great body work done prior to me owning it and they had painted the one side rock guard on the truck and cleared it to the truck. So taking it off pealed the clear around the rock guard. So that panel got resprayed to fix that.

@TXNSSR can go into more details of where he had to adjust the rockers to fit. Mine had already been fit to another truck before I got them so it was a lot easier for me.

 

Plug and Play is not a good description for most all fiber glass parts.

 

True. His statement came in response from others that said how they fit great. Some might, but the MPD ones which are the original running molded running boards for the SSR, honestly not so much. That said, they look fantastic all done on the truck. The rear fascia is a bit less work and generally fits better, but it still takes around 12h of work to get cut and fit on the truck.

 

SSRs fit and finish are so much better then the other fiber glass stuff I have had the nightmares of working with. Race cars = aw who cares its a race car. Street Rods = those bodies never fit right when the car was new in the 30s or 40s so they just need a little massaging. Which that means you will be cutting and re-glassing it back together.