Posted By: stockerbill
700r4 in 75 w100 with 360 gas - 06/27/13 05:16 PM
Don't bash me too hard Plz? Any one ever done this and what transfer case should I run? I never tow or beat my old girl, I just want a o/d with lock up converter and no computer. OK give it to me
Posted By: buildanother
Re: 700r4 in 75 w100 with 360 gas - 06/27/13 05:58 PM
That's an interesting swap, but you'd have to be running some steep gears for it to be worthwhile I think. Every old ram I had with standard gearing(321-355) was hurting on the highway with overdrive. That was with 33's though mostly.
Posted By: 340SHORTY
Re: 700r4 in 75 w100 with 360 gas - 06/27/13 06:42 PM
700r4 is GM IIRC. Why not just go with a 90/93 4x4 version of the 518? Much easier to install..
Posted By: 76dodgeboy
Re: 700r4 in 75 w100 with 360 gas - 06/27/13 07:53 PM
The ultra bell needed will cost you close to $500 plus you have to run the GM version Transfercase. You can get a 518 for under $500 and it will bolt to your t-case
You truck your money
Posted By: stockerbill
Re: 700r4 in 75 w100 with 360 gas - 06/27/13 08:18 PM
Thx Much! , I have a adapt plate left from 1 of my old drag cars and the mope trans don't have o/d and lock up converter with no wires like you can do with a 700r4! I will never beat on it hard so it will live. I am hard core Mopar,(been drag racin these cars from 1968 until 2 years ago) however they don't have what I need for my old power wagon so here goes!
Posted By: 76dodgeboy
Re: 700r4 in 75 w100 with 360 gas - 06/27/13 08:21 PM
The early 518s are from my understanding just a couple wires and a switch. Youll still need to source a gm Transfercase and probably Fab a crossmember or mod currect. I plan on a 518 behind the 400 in my wifes 70s Powerwagon. She wont wheel it like I plan to mine.
Good luck
Posted By: stockerbill
Re: 700r4 in 75 w100 with 360 gas - 06/27/13 08:22 PM
fact 391 gear and stock 15 inch tires, it has the wind knocked out of her on the freeway
Posted By: 76dodgeboy
Re: 700r4 in 75 w100 with 360 gas - 06/27/13 08:27 PM
31s came stock. 33s will fit if 9.50 or possibly 10.50
Posted By: stockerbill
Re: 700r4 in 75 w100 with 360 gas - 06/27/13 09:14 PM
I never measured them? it has 235/75/r15's and at 65 mph she is at 3grand(rpm) and isn't happy at all!
Posted By: 76dodgeboy
Re: 700r4 in 75 w100 with 360 gas - 06/27/13 10:03 PM
29" give or take with brand
Posted By: 76dodgeboy
Re: 700r4 in 75 w100 with 360 gas - 06/27/13 10:08 PM
31s will put you around 2755rpms
33s at 2588rpms
Posted By: stockerbill
Re: 700r4 in 75 w100 with 360 gas - 06/27/13 10:34 PM
Again, Thank You!! That is Great info!
Posted By: 76dodgeboy
Re: 700r4 in 75 w100 with 360 gas - 06/28/13 12:13 AM
Ramchargercentral has a calculator for such things
Posted By: 340SHORTY
Re: 700r4 in 75 w100 with 360 gas - 06/28/13 02:21 AM
and I remember reading a post where someone added a vacum switch that made the trans work normally instead of needing to manually turn the switches on and off..
Posted By: d100clubcab
Re: 700r4 in 75 w100 with 360 gas - 06/28/13 03:36 AM
I'm sort of in your shoes.
I have 31 inch tires and 3.23 gears
she just purrrrs at 65 tho
even 70 at times
75+ is when i hear her straining
i do 34 straight shot freeway miles each way every day
but i want 4.10 gears to do better from stop light to stop light
and add a518 with that overdrive to still keep her purring at 65 on the freeway
i have to find the tranny first tho