picked up a set of used DC2 mounts a couple of weeks ago for $100, and figured that i would try to make my own mounts (worst case i could undo what i did and resell them to someone else). i found a few articles on using window weld but i heard that that becomes almost as stiff as solid mounts. after some searching in home depot i found PL brand poly urethane calk, which has a stiffness of 60A.
followed the instructions from the window weld articles. cleaned, sanded, and recleaned the mounts, taped off one side, and put them in my old sand box (i knew i kept that thing for a reason!) to keep them level. filling them was pretty easy, the tube had a small enough tip to get into the tight spaces. afterward i coverd them with a plastic tarp to keep the rain off and let them sit for 3 days. 3 days later i ran into my first problem: the side with the tape was still as gooey as the day that i pumped the poly urethane into it. it wasnt all bad though, i was able to use a stick to determine how deep it was dried (about 1/4 way). i scooped out the wet stuff and applied a thinner layer and let it sit. 24 horus later it was dry (i didnt check before 24 hours, im sure it was dry before then though). had to repeat that 2 more times.
as soon as i can figure out how to get pics off of my phone ill post them.
my only complaints abot the process was the color of the urethane (its tan, which is guess is good if you have a desert storm camofluaged teggy lol) and the drying time. if you got a week though its not bad for a $20 modification (including price of calk gun and duct tape).

anyway thought i woudl post this, thought it was cool that theres a 60A version of window weld pretty much.

 

Inserts cost about $30, probably should have just done that.

 

read conflicting things about inserts, and i'd rather have the mounts as one solid piece. mechanically speaking they should be stronger that way.

 

i think im gonna do this to my mounts while the motor is out of the car..

 

poly calk + inserts = best

 

its kinda hard to even out the urethane because how sticky it is, using a scraper just pulled out chunks of it and trying to dab it just made it even worse. what i did in the end was i found a like a 2"x2" piece of flat wood, layed it flat, then pressed down as i scraped. just had to wipe up a little goo from the edges but it evened it out nice.