clarification of gear ratio in 4sp vs 5sp

Joined
Nov 3, 2005
Messages
44
Location
dublin, ca
thanks GLTHFJ60 for replying to my question. so are the gear ratios significantly different enough that i should be shifting at different points;eg. 2nd to 3rd , 3rd to 4th, etc. recently i upgraded to a new 5sp; have driven it less than 5000 miles and have started to develop a whining noise in different gears at different unpredictable times before i would normally shift to another gear or while in i am in gear! or does it mean i have a defective 5sp? i was hoping that it is due to my improper shifting rather a defective tranny! would appreciate input from all the experts out there!
 

GLTHFJ60

Rum Runnin'
SILVER Star
 
Joined
Apr 18, 2005
Messages
24,515
Location
Durham, NC
As for shift points, make sure not to lug the engine ( under load at less than 800 rpm's or so ) and make sure not to over-rev it. Other than that, shift by however you'd like.

The whine can be produced by a number of things, the throwout bearing, the input bearing, the transfercase idler bearings, input bearings, etc. My recommendation is to change the fluid of both the tranny and t-case and take a look.
 
Joined
Feb 2, 2008
Messages
1,728
Location
Palm Harbor, Florida
I shift around 2000 rpm give or take. No whining or other sounds, it does however take awhile for the gears to loosen up. 3rd and 5th took a couple of months to shift smooth.
 
Joined
Jan 8, 2004
Messages
2,160
Location
Emerald City
I have the 5sp, and skinny 33's w/ 3.70's. I shift 2500-3200 typically depending on gear. 1st to second i can shift when rolling (1st is almost granny), 2nd and 3rd both i rev up - especially up hills (regear to 4.11 would help a lot), and 4th i use typically on freeway up inclines, though sometimes stay in 5th if doing 65 or so (2500 - which seems decent powerband).

3rd can be tight sometimes, but so far no strange noises. Only about 500 miles so far on the new h55 and rebuilt t/c.

HTH

rob
 
Last edited:
Top Bottom