H3x or h3 on 18s with tires larger than 265/65-18
#6
Ive had 35" tires with both engines (3.7l '07 H3 lux and now a '08 5.3l H3x Alpha) and the 3.7 was the biggest reason i sold my '07. With 35s it cant maintain speed on the highway and will constantly kick down to 3rd gear to maintain 75mph. The 5.3 is 100x better. I can tell that the 295s added a little resistance to the engine compared to the stock tires, but thats just a gearing issue.
Another benefit of the 5.3 is that they all came with 4.10 diff gears instead of the 4.56's in the 3.7; so when you go to 35 inch tires on an alpha, you can easily swap the diff gears to 4.56's to correct the gearing changes caused by the larger tires and it will drive like oem. With the 3.7, 4.56 is as big as you can go in the front diff so youre stuck feeling like youre always pulling a trailer and your speedo will always be off 9.3%.
Another benefit of the 5.3 is that they all came with 4.10 diff gears instead of the 4.56's in the 3.7; so when you go to 35 inch tires on an alpha, you can easily swap the diff gears to 4.56's to correct the gearing changes caused by the larger tires and it will drive like oem. With the 3.7, 4.56 is as big as you can go in the front diff so youre stuck feeling like youre always pulling a trailer and your speedo will always be off 9.3%.
Last edited by supsam86; 12-09-2012 at 11:02 AM.
#8
Thanks!
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