84 Chevy P30??? Anyone know anything??

[73c20jim]

damn computer collapsed all my spaces making my formulas unreadable. That's 30 minutes of work down the drain.

 

[Boonie]

don't know if this helps any, but I use this for any gearing/speed questions I have.

http://www.grimmjeeper.com/gears.html

 

[deve05]

don't know if this helps any, but I use this for any gearing/speed questions I have.

http://www.grimmjeeper.com/gears.html

Bruh..... That tool is like.... [emoji2962] That's exsactly what I needed! Even though i still wanna learn the math behind it, but that's awesome! Thank you. According to that chart. With a t56 and 4.10 gears. On 6th gear i can cruise at 85 with the engine at 2150 rpm.... Thats not bad! For having 4.10

Sent from my Moto Z (2) using Tapatalk

 

[73c20jim]

don't know if this helps any, but I use this for any gearing/speed questions I have.

http://www.grimmjeeper.com/gears.html

This way cool better than doing it yourself.

 

[SDJunkMan]

Need to know engine RPM.

Need to know rear end ratio. (To convert driveshaft RPM to axle RPM.)

.

Yes the differential is part of the equation, see above.

Edit - Oops, posted before reading the entire thread.

 

[bucket]

Wow, thank you! Im gonna grab a pen and paper and see if i can figure it out.

Question, does differential gearing affect this at all! Like 4.10 vs 3.73. Because it affects speed vs engine rpm.

Sent from my Moto Z (2) using Tapatalk

There's a helpful calculator in here.

https://www.andysautosport.com/learning_center/calculators/

 

[73c20jim]

Better than doing it with a pencil.

 

[bucket]

There's even a button to click on that fills in the trans ratio boxes.

 

[73c20jim]

I saw that. Going to use this for my 2006 Rubicon.

 

[deve05]

Yeah both of the websites posted are awesome. The first website is more gearing detailed, and the second website has more variety of tools like fuel injectors.

Sent from my Moto Z (2) using Tapatalk

 

[Zoomalot]

I believe the front pulley on a 366 and a 454 are NOT interchangeable due to size measurements.

 

[4WDKC]

t56 stock are only rated to 450tq, are hydraulic slave cylinder, are not cheap, hard to come by. If I were you I would be looking at something like this https://americanpowertrain.com/i-23887208-pro-fit-tremec-tko-5-speed-for-chevy-gmc-c-10-60-84.html it is all designed to work together and you dont have to source rare hard to find or one off parts.

 

[deve05]

t56 stock are only rated to 450tq, are hydraulic slave cylinder, are not cheap, hard to come by. If I were you I would be looking at something like this https://americanpowertrain.com/i-23887208-pro-fit-tremec-tko-5-speed-for-chevy-gmc-c-10-60-84.html it is all designed to work together and you dont have to source rare hard to find or one off parts.

Do they have something like that on the form of a 6 speed?

Sent from my Moto Z (2) using Tapatalk

 

[4WDKC]

I dont see anything but do the math with the .64 overdrive gear using the calculator above.

 

[WHEELMAN]

454 is the same back to 1975 or 1973
But the motor home engine will have a RV cam in the motor for pulling