Question on Gearvendors overdrive . Is it a basic bolt in operation for a

A drop from 3.55 down to 2.76 would be perfect ! As it is I put the 3.23 back in because with 3.55 it just revved to high for my liking on the highway . It is expnsive , but if it means I enjoy the ride more with the GV it's worth it .
That means I can put the 3.55 have better acceleration from a stop and even lower revs on the highway that my 3.23 , what's not to like ? You say it's expensive , hey this whole 2nd car/toy is expensive , store in winter , insurance , plates it's the nature of the beast .
Thanks .

hey if it does what you need then go for it.

i said its expensive for what it gives. to me i would rather have a better first gear and a better OD ratio if i'm spending that type of money. but if the GV works for you go for it. like i said i have two friends running them with 3.55 gears that they like it..