Polyurethane VS. Forged aluminum BB lift spacers?
I've been pricing different budget boost kits, including ebay ones, and for the first time that I've ever seen, they have a Forged aircraft T6061 aluminum Spacers for the F&R for $100+ship. Has any one ever used these before, and what would be the advantages/disadvantages? For the price, if they're good, I'll pick up a set & shocks, but I know nothing about these... What do you guys think?
'98 ZJ Laredo, 4.0L, 140K, NP242, stock. (Sold @205k)
'99 WJ Laredo, 4.7L, 175K, NP249, stock. (Sold @240k)
'97 ZJ Limited, 4.0L, 109K, NP249, stock.(Current)