Well, I will have to disagree on the "no manufacturer builds something that close to the max ratings."
The 87-93 Fox body Mustangs came with a T-5 5-speed transmission that is still rated for 300lb/ft of torque to this day. The 5.0 Engine was 225hp/300lb/ft from the factory. Yes, they broke often.

A donor Hemi 2500 will have most of the needed parts for the changeover including the pedals and steering column.


Oh, and AF, the 03-08 Hemi has 345hp/375lb/ft of torque.
The 09 has 390hp/407lb/ft.

 

Well until someone posts something sayin they dragged their g238 I'm gonna continue lovin it lol. How many auto tranny threads for issues are there lol

 

Don't even bother putting the 238 behind a Hemi. I toasted one in my truck with a 4.7. When the dealer opened it up, they couldn't figure out how I bent both rails and shattered third into tiny peices. Yes it is a work truck, and yes it is used hard, But if it won't last in a 2wd 4.7, it has no chance behind a hemi.

 

The 4.7's auto tranny (4500NV or something?) is supposedly more reliable than the 545RFE. My has been reasonable shift qualities. It's just too bad the torque converters don't lock up at low engine RPM's until later model years (they changed them so they would in '08 or '09 I think), anything less than about 1300 RPM is useless. I know the Hemi has a lot more torque below 1700 RPM than the 4.7, but still, an underworking torque converter at lower engine speeds bothers the crap out of me. Cadillacs don't have this problem. Of course Direct Injection allows them to have almost unheard of amounts of torque at low engine speeds. I have to be real gentle on my bro's 1996 Eldorado with the Northstar because it jerks you on throttle pedal tap-in. So much for smooth power, haha.
I hate how Americans have killed manuals. I'm not even going to rant because it won't change anything, lol. Basically I'll sum it up as we're paying more for a lesser product. Most of the new Jeep Wranglers have automatics. WT*! Wranglers are pure-bred manual-tranny machines. Buy a Patriot or Grand Cherokee or something if you want an auto. I test drove a 6-spd 2008 Wrangler Unlimited. Anybody know what tranny that is? 8 '08 Wranglers in the lot, 1 had a manual. Hemi Ram's are underrated because they're limited to that dang 545RFE. Chrysler can make good transmissions but usually they don't because they cheapen them down too much. With the trucks they should just quit jacking around and contract with Tremec and/or Getrag, and make truly competitive transmissions, like tough-as-nails 6-speed manuals on 1500 and 2500/3500 Rams and 7-speed automated's on 1500's (along with a small common-rail turbo diesel; I say f the V diesels, get about a 4.0L Inline-5, inline piston diesels are better than V piston diesels hands down, forget the extra 2 or 3 HP you can get out of the V).

 

Several of your questions have already been answered over on the d o d g e t a l k forum in the 3rd gen performance section...in the "thinking of manual swap....need info thread". As for bellhousings, you won't find one for 4.7Ls 'cuz it's integrated into the nv3500 5-sp and the G238 6-sp trannies. Some bellhousing info: the 3.9, 4.7, 5.2, 5.7 and 5.9 have the same BH bolt pattern... the 6.1 uses the same pattern but puts the starter on the passenger side of the engine (http://www.dakota-durango.com/forum/...ad.php?t=78848) I was reading the site above and http://www.jeeps-offroad.com/showthread.php?t=4740 it seems flywheel size depends upon what bellhousing you get. Jeep 3.7L BH needs a 10.5 flywheel; Dodge 3.9L needs a 11 flywheel. A 2.5L BH won't fit...now you know.
The nv4500 is a 5-sp manual that has a granny low+4 speeds; originally used in the HD trucks...then replaced by the nv5600. Some good info here: http://www.high-impact.net/nv4500.htm 4.7Ls and 5.7Ls get the same 545RFE autos.
The 08 Jeep Wrangler probably had an NV3550...similar to the 3500 but refined a bit. http://www.high-impact.net/transmiss...ick_nv3550.htm
Yes, I am really looking at doing a swap; just need $4200 to fall out of the sky. Since only 10% of the 06-08 fleet was manuals, they are rather rare. I could not find one when I bought my 07. I've attached a spreadsheet. Nuts, I can't 'cuz I'm at 105kb of my 106kb limit. Dangit. Well, my xls sheet has about 8 manual trannies listed from 3500s to G238s to T56s to Keisler RS500s (we can't use them I found out) to Rockwells. I included gear ratios, dry weights, torque capacities and other stuff if I could find it. Anybody got an idea how I could post it?
[edit] Found out the 08 Wrangler should have an NSG370: http://www.rockcrawler.com/features/..._six_speed.asp

 

wow this is an old thread.... i did end up converting to a 6 speed.... sold the hemi and bought a cummins haha problem solved!!

 

Why do you want to do this?

If you think your going to have a faster truck, think again, the G238 is behind the 4.7, thier are three versions of the 6sp man with the 5.7 hemi 2500, I don't have the G-56 in mine and the decal on the transmisson has come off, so I don't know what I have.

U joints on the rear carrier bearing, 1500 ram will not fit the drive shaft out of the 2500, Im sure aftermarket could build something that would work.

If you want to be a speed racer the Ram 2500 man transmissons are not built to be banging gears like a good old boy nascar driver.

I hate automatics, esp dodge auto slush **** boxs, but I would build up the automatic, it will give you more performance and a lot cheaper to do than finding cross members, donor trucks with missing gears, u joints, drive shafts, clutch, pressure plates, throw out bearings, clutch fluid resserve, nutual safety switchs, 3 pedal converisons and the list has only began.

 

nathan, congrats! I couldn't talk the wife into a diesel...

^THIS is the reason!^ I wanted a stick, but my son-in-law (who I bought my truck from) told me the 2007 4.7L w/manual was a very difficult combo to find. So, I got the auto. :banghead: I still smell conspiracy at Dodge, but can't prove it.

I don't plan to race, and you are right a truck tranny isn't going to cut the mustard if one wants to street race. That would require a TKO or T56, and a T56 would likely require a 4.56 rear end. What year is your truck? 6-speeds? If it's not a G56, you might have an NV5600.

I know, the parts list is about 15 components long, but that doesn't bother me. It's on the Excel sheet I can't post... Maybe this will read okay:
$500.00 1 each MD-401-8077 Bellhousing, QuickTime, 5.7/6.1/6.4L Hemi to T56 Viper/LS-1
$360.00 1 each MD-LBS130-6-xx Flywheel, LBS, Mopar, 30# 130 tooth, 0oz, 6 bolt, 340-383-440,1964-1978
$17.00 set of 6 MD-403-1001 Bolt kit, Flywheel, 7/16", Ford/Chevy
$12.00 set of 6 MD-403-1005 Pressure plate bolt kit, 3/8"
$495.00 1 each MD-KK5.7Hemi-26 Clutch set Kevlar/Kevlar, 5.7/6.1 Hemi changeover, 11" 26spline 1 1/8" Viper T-56 0.750 pilot
$486.00 1 each MD-514-14-301 Hydraulic, T-56 Bolt on 1400 CSC slave cylinder assy, Ford
$38.50 1 each MD-514-139100-30 Steel Braided line, Double AN4 Female 30
$49.95 1 each MD-900-6088 Master Cylinder, Wilwood, .700" bore x 1.4" stroke
$3.00 1 each MD-30382-04-04B Fitting, Brass, Male 7/16"-20 to 1/4" hose barb, straight
$9.08 1 each MD-6801-04-03-FG Fitting, Elbow, AN4 to Male, 3/8"-24 w/lock nut
$19.00 1 each MD-504-1101 Mount, Trans, Ford, T-5 conversion/TKO/C4/Toploader
$125.00 1 each MD-601-1350-30 Slip yoke, 30 spline, 1350 U-joint, Viper, Aston Martin T-56
$43.40 4 each ATF Oil ATF, Amsoil 1 quart bottle
MD-700-0002 Harness, Back up, GM, Viper

$2,302.93 -------$1,802.93 if using the NV3500 or G238 w/integrated bell housing
plus tranny…

I know I could get a solid 545RFE rebuild from Sharadon http://www.sharadon.com/sdtestparts.htm or ATS (if they had 2wd): http://www.atsdiesel.com/ats2/productdetail/3069459272 ModernMuscle has 2wd units: http://www.modernmuscleperformance.c...p/pp545rfe.htm but that really won't make me happy.

 

My year is a 2006. Back in 06 I wanted a hemi half ton reg cab with a man transmisson, I did not want the 4.7, so I had to go to a 3/4 ton to get the hemi 6 speed combo and I had to factery order.

Now fast forward to pressent day and you can't get a hemi with a 6speed in a 2500 truck, and I don't want to be up sold a CTD to get the 6speed.

So my truck pretty much is the last dodge truck I will buy!

4.7 6sp rams in 1500 fourm are verry rare, I see more of thease than 2500 ram hemis with man transmissons.

A 4.7 with a mn transmisson in a Dakota is fun to drive, really fun to Drive!

 

DavB,
You might consider calling these guys http://www.google.com/url?sa=t&rct=j...MSIe3fpWib_K0Q

They've been building some custom stuff for HO packages, and for the money you'll spend doing the convert, they may be able to set you up better