cyclops6965

ive been hearin plenty about gears and almost all of it has been about 3.73 and 4.10. ive noticed a few people havin 3.90. wuld it be good to jus go in betweenthe 3.73 and 4.10? wuld i get the benefits of both if i jus go wit 3.90 gears?

3.Gr8

Short answer: no. stick with 3.73's for manual tranny, and 4.10's for automatic. Just curious though, what benefits are you talking about? both get you to the power band faster, automatics choose 4.10's because its best gear that is still street friendly. Manuals stick with 3.73 because 1st gear is so short, it makes shifting a pain.

SilvrStang

Correct me If Im wrong but they dont make 3.90s for a 7.5 rear end. Those are made for 8.8 axles. So yeah if you're an auto slap 4.10s and manual go with 3.73s

l_shizzle_l

Yep.
I kinda wished i got 4.10's but when i go FI the 3.73's will be better.

slimshorti1589

what do they com ewith stock just out of curiosity?

l_shizzle_l

3.27 for 99+
2.73 for 94-98

cyclops6965

i had jus seen a few guys that say they hav 3.90 gears. and i saw one post that said 3.73 is better for gas and 4.10 is better for acceleration. but thans for helpin me out bout the whole gear issue.

cobra232

3.73's are really the best gear option. good mileage,great highway manners, good off the line grunt.

4.10's are nice for 4.0's as they like to rev and breath better stock for stock over the 3.8 at high revs and they have a nicer trans gearing than us.

all around 3.73's are really a nice gear. 4.10's are harsh. bad traction on dry/wet pavement. (excellent in the snow however with an LSD). i hated my 4.10's. loved my 3.45's afeter my experience with the 4.10's now i have 3.73's and will be going back to 3.45's because i will most likely be going turbo.


singleport 3.45's are a damn nice gear as are 3.73's over stock gears
splitport go 3.73's. 3.45's don't make enough difference to warrant them unless you turbo your ride