trying to help a buddy find out what gears he has on his 08' rcsb 4.8
tried looking in the glove for the code but its all smeared/blurry
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trying to help a buddy find out what gears he has on his 08' rcsb 4.8
tried looking in the glove for the code but its all smeared/blurry
just call up dealer give them last eight of vin and they can tell you real quick. call 2931325 ask jim, hes cool!
Meli--who is Jim? Is he your pimp or something?
lol shut it ty! i have no pimp.. ima pimp and you can be hoeski! lolQuote:
Originally Posted by txarkitekt
lol ok when can i ask jim,tomorrow?
yes call tomorrow!
much easier. count the rotations of the pinion vs wheel
Gonna have to disagree with that George, phone calls are very simple nowadays :lol:
And G80 vs. non-G80 changes the wheel rotation rigmarole.
Good call.Quote:
Originally Posted by Quik
Not on Sundays DUFUS. Service/Parts is CLOSED on Sundays.Quote:
Originally Posted by sleeper1500
Nathan, doesn't matter which way the wheel rotates when all you wanna do is find out what gears you have...RIGMAROLE.Quote:
Originally Posted by GasGuzzler
run the RPO codes in the glovebox?
He said the codes were unreadable
On the 4.8s you only had two choices anyways. 3.73s or 3.23s. Is it quick or not so quick?:lol:
Ummm...yes an open diff with both wheels off the ground does not rotate the same number of times as a one with an LSD. You think I make this up?
Read this ---> differentials sort of explained, FIRST hit on Google
it had 3.23s,,weird cause hpt said it had 3.73s,,i think allen saw that problem on my buddys 08' as well,
yeah Ive got the 3.23s as well, which makes me 'not so quick'
With a locker it is the same though, until you spin it fast enough to lock it up. G80 isn't a LSD it is a locking diff. (Limited slip goes off the input torque rather than wheel slip)Quote:
Originally Posted by GasGuzzler
Quote:
Originally Posted by GasGuzzler
WHAAAAAAAAAAAAAAAAAAAAAAAAAAAAT???
What a freakin genius. This is what George and I have been talking about. DER DER DER.Quote:
Let's pretend through this example that you have 3.73 gears.
If you have a locker or good traction (or even a limited slip with equal resistance on either wheel), then when you turn the driveshaft 3.73 full turns, both wheels will rotate one full turn. That's the gear reduction at work.
Is that not what we are talking about???????????????
Now, pretend you're making a tight turn, where the outer wheel has to turn more times than the inner wheel to complete the turn. Because of the way an open differential works, when one wheel turns slower than the ring gear, the other wheel has to compensate by turning faster than the ring gear. In this situation, for every 3.73 turns of your driveshaft, the inner wheel may only make half a revolution, while the outer wheel makes 1.5 revolutions.
Basically, for each 3.73 turns of the driveshaft, there must be two full wheel turns for the two wheels combined. When driving a straight line, each wheel makes one full turn. When turning, one wheel may make 0.8 turns while the other makes 1.2 turns. The tighter the turn, the more dramatic the difference between how fast the two wheels turn.
DUUUUUUHHHHH. That is why it is open until the LSD locks up. Wow, this guy is John Madden--stating the obvious.
This situation is exaggerated when you jack up only one rear wheel while leaving the other on the ground. One wheel cannot rotate at all, so the other wheel (the one you're turning) must make two full turns in order to get one full rotation of the ring gear in the differential. One rotation of the ring gear will generate 3.73 rotations of the pinion gear.
If you jack up both tires and leave the tranny in gear, the ring gear won't be allowed to rotate at all. Therefore, if you jack up both wheels and try to rotate one of them (with an open diff), the opposite wheel will have to rotate the same number of times, but in the opposite direction. If you try this trick with a good limited slip, you'll have to really wrestle the tire in order to get it to turn, since you're trying to overcome the slip-limiting force of your LSD. If you try this trick with a locker, you'll pop a blood vessel before you get the tire to turn, since a locker won't let either wheel rotate without the driveshaft turning. That's the whole point of a locker.
So, assuming you've got an axle up in the air with the driveshaft disconnected (or the tranny in NEUTRAL) & neither wheel on the ground:
- If you turn one tire & the other one either stays still while the pinion rotates, or the other one rotates backward while the pinion stays still, or something in between, then you've got an open diff or a very weak LSD (like a Trac-Lok with too many miles on it). In this case, you need to secure one wheel (perhaps by lowering the tire onto the ground), then you can figure your gear ratio by rotating the airborne tire TWO full rotations and counting the number of times the pinion rotates. 3.73 turns means 3.73 gears. If you only rotate the tire once, then 1.865 turns means 3.73 gears.
- If you turn one tire & the other one turns the same number of turns in the same direction, then you've got a good LSD or locker. In this case, you can just rotate the tires ONE full rotation and figure your gear ratio by counting the number of times your pinion rotates. 3.73 turns means 3.73 gears.
Youre just too damn good for your own good, Tyler. It must be tough to go through life with that silver-lined cloud following close behind.....j/k bro :lol:
:greg:
Hey 3.23's can be quickQuote:
Originally Posted by Mang213
No they can't.
If 3.23s are so quick, then why does your tag read Slo Trc? Perhaps, you are like me, and take the scenic route to being fast. j/k :lol: My truck moves pretty nicely for being relatively stock, so I really can't complain about 3.23s, or 4.8s for that matterQuote:
Originally Posted by SLO TRUCK
give me the last 8 digits of his vin and ill tell u exactly what he has
he already figured it out, it was the 3.23s