55mph at 3000 RPM

[mountainexplorer]

55 mph at 3000 RPM turing tires that measure 29.5" tall.

My thought is 4.10's. The sticker in the glove box says factory 4.56's.

 

[joez]

Are you asking what it is? If so, yes, that would be 4.56 gears.

 

[jjlaughner]

I'll trade ya 3.73's and an open diff for your diff /forums/images/graemlins/grin.gif I have 4.56 gears but need a carrier /forums/images/graemlins/wink.gif

I was surprised I was in the DD today 3.08s and 35's with the 700r4 in D (not OD) and it cruised at 1800RPM at 55MPH

 

[mountainexplorer]

I'm hoping they are 4.56's, but the last Crew Cab I had that said it had factory 4.56's had been swapped out to 4.10s by someone.

I could really use the 4.56's more than 4.10's.

 

[mountainexplorer]

[ QUOTE ]
I'll trade ya 3.73's and an open diff for your diff I have 4.56 gears but need a carrier

[/ QUOTE ]

These are in a 14 Bolt FF rear and 60 front. What do you need a carrier for?

 

[pauly383]

[ QUOTE ]
I was suprised I was in the DD today 3.08s and 35's with the 700r4 in D (not OD) and it cruised at 1800RPM at 55MPH


[/ QUOTE ]

I have 33's and same gears , in D I got 1500-1600 rpm @ 55mph . Truck still pulled though . Shifted OD at 65 mph @ 1900-2000 and got back to 1600-1700 /forums/images/graemlins/k5.gif

 

[jjlaughner]

14bff 4.56 carrier, using a 10bolt /forums/images/graemlins/whistling.gif up front with 4.56's and an auburn, then I have a 14bolt I need to get 4.56's in (I have non-thick gears), so I need a 4.56 carrier. Also need to make the 8lug 6lug but thats another story...

 

[joez]

They are, i did the math before i replyed, dont want to spew false info. if the tires were a true 29.5, and you were doing a true 55mph, actuall rpm's come out to about 2900.

 

[mountainexplorer]

Thanks for calculating that for me and giving me the good news. /forums/images/graemlins/grin.gif

I'm too tired to do any sort of math or use my brain.