Standard tranny swap - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Full Size Jeep Forum > Standard tranny swap

Introducing MONSTALINER UV Permanent DIY Roll On Bed LineThe Solution to Radius Arm Bind - Meet Lock-N-LoadFS: Jeep Fog Light LED Bulbs! Several Brightness Options!

Reply
Unread 04-04-2013, 08:28 PM   #1
revelc
Registered User
1985 FSJ Wagoneer 
 
Join Date: Nov 2011
Location: Tyler, Texas
Posts: 663
Standard tranny swap

I have a 401 with around 380 HP and 450+FT/LBS with a 727 I just had rebuilt behind it.

I want a stick to make best use out of the new engines power. What do y'all recommend in terms of a 4 or 5 speed? My relative has shipping containers full of all kinds of older transmissions. Not many jeep ones though.

What would be the cheapest, strongest tranny to swap? I know I'll need a flexplate, clutch, pedal assembly( and tips?), master cylinder, new drive shafts?, crossmember?

__________________
Wag Rebuilt 360, 260H, 727, Locked 44, AMC 20, 208, 31" M/T's, 4" Rustys, 2.5" Duals. SOON:SOA SF, 496, T400, Doubler, D60's, 37" M/T's <-TOY
Cherokee Rebuilt 360, 2" Duals, mostly stock. SOON: Hot Street 401, 4'' Rustys, 33" BFG A/T's maybe a T-case to get rid of Q-Track <-TOW RIG
revelc is offline   Reply With Quote Quick reply to this message
Unread 04-05-2013, 01:55 PM   #2
super98lsc
Web Wheeler
1999 WJ 
 
Join Date: May 2006
Location: Austin, TX
Posts: 1,414
He have any 88+ 700R4's complete? Those can be built pretty mean for an Auto that wont break the bank. Has a lower 1st gear than the 727/TH400 so acceleration will improve plus you gain the .71 OD gear.
__________________
www.mangierisrc.com
06-Corvette z51-6spd,b&b,K&N low miles.
77-Corvette Stingray 496 BBC/TH400 built 667hp+
===================================
00 WJ 4x4, 4.7 stroker, turbocharged,..lots more..
01 WJ 4x2 4.7v8 Limited (needs valve job)
90 Grand Wagoneer 401 Edelbrock Heads, Lunati .510/.527 FT Cam, Edelbrock RPM Air Gap, Holley HP 750, Thorley Headers, HEI, Electric Fan w Digital controller,4" lift 31x10.50 Goodyear Duratrac's on Pro-Comp Wheels,new interior, seats,seals,Alpine and JL full system, Remote HEI, Clifford 2 way with remote start,windows,tailgate.
96 Cherokee Country 4dr/2x2 White/Tan 3" Lift Sahara 18" Wheels 32.5"'s 99up head and intake- for sale soon!
super98lsc is offline   Reply With Quote Quick reply to this message
Unread 04-05-2013, 03:54 PM   #3
revelc
Registered User
1985 FSJ Wagoneer 
 
Join Date: Nov 2011
Location: Tyler, Texas
Posts: 663
He has a bunch of Turbo 350's, 700R4's, a few GM and ford granny 4-speeds, and a little bit of this and that. He even has a few doublers laying around if I wanted to get ridiculous.

If I used a 700R4 would I need to use a lower gear to stay in my power band or should I have enough torque to turn the OD?

I would love to take off hard and have to weld my rear end so I can smoke the rears.
__________________
Wag Rebuilt 360, 260H, 727, Locked 44, AMC 20, 208, 31" M/T's, 4" Rustys, 2.5" Duals. SOON:SOA SF, 496, T400, Doubler, D60's, 37" M/T's <-TOY
Cherokee Rebuilt 360, 2" Duals, mostly stock. SOON: Hot Street 401, 4'' Rustys, 33" BFG A/T's maybe a T-case to get rid of Q-Track <-TOW RIG
revelc is offline   Reply With Quote Quick reply to this message
Unread 04-05-2013, 06:16 PM   #4
super98lsc
Web Wheeler
1999 WJ 
 
Join Date: May 2006
Location: Austin, TX
Posts: 1,414
The 700 would need a good build to handle that 401 but if you have 3.31 gears I think the grunt that 401 has wouldnt have any problem holding cruise speeds at 70+ in od. The lower first, and if you rocked a 2200 stall your tires will hate you :-). what size tires are you running? My 31x 10.50s and 3.31 gears im turning 2800 @75 w the 727 with OD and lockup converter it would drop approx 500 which I know my mild cammed 360 would pull fine with. The wagons not as heavy as it looks. <4400 lbs. Suburbans are 2000 lbs heavier run taller gears and tires same Trans and have smaller engines with less low tq at low end than I do. (The 6.0 ls is an exception.)
__________________
www.mangierisrc.com
06-Corvette z51-6spd,b&b,K&N low miles.
77-Corvette Stingray 496 BBC/TH400 built 667hp+
===================================
00 WJ 4x4, 4.7 stroker, turbocharged,..lots more..
01 WJ 4x2 4.7v8 Limited (needs valve job)
90 Grand Wagoneer 401 Edelbrock Heads, Lunati .510/.527 FT Cam, Edelbrock RPM Air Gap, Holley HP 750, Thorley Headers, HEI, Electric Fan w Digital controller,4" lift 31x10.50 Goodyear Duratrac's on Pro-Comp Wheels,new interior, seats,seals,Alpine and JL full system, Remote HEI, Clifford 2 way with remote start,windows,tailgate.
96 Cherokee Country 4dr/2x2 White/Tan 3" Lift Sahara 18" Wheels 32.5"'s 99up head and intake- for sale soon!
super98lsc is offline   Reply With Quote Quick reply to this message
Unread 04-05-2013, 06:34 PM   #5
revelc
Registered User
1985 FSJ Wagoneer 
 
Join Date: Nov 2011
Location: Tyler, Texas
Posts: 663
Quote:
Originally Posted by super98lsc
The 700 would need a good build to handle that 401 but if you have 3.31 gears I think the grunt that 401 has wouldnt have any problem holding cruise speeds at 70+ in od. The lower first, and if you rocked a 2200 stall your tires will hate you :-). what size tires are you running? My 31x 10.50s and 3.31 gears im turning 2800 @75 w the 727 with OD and lockup converter it would drop approx 500 which I know my mild cammed 360 would pull fine with. The wagons not as heavy as it looks. <4400 lbs. Suburbans are 2000 lbs heavier run taller gears and tires same Trans and have smaller engines with less low tq at low end than I do. (The 6.0 ls is an exception.)
I'm running 31" but might go to 33"
I had a 700 behind a really hot 350 in my Air Force days. It must have been built for the abuse.

I will see what I can scrounge up. I have the next year to build it up. So I can accumulate the parts and either fab up or make a new adaptor.

But I really want a stick shift. I enjoy driving a standard.
__________________
Wag Rebuilt 360, 260H, 727, Locked 44, AMC 20, 208, 31" M/T's, 4" Rustys, 2.5" Duals. SOON:SOA SF, 496, T400, Doubler, D60's, 37" M/T's <-TOY
Cherokee Rebuilt 360, 2" Duals, mostly stock. SOON: Hot Street 401, 4'' Rustys, 33" BFG A/T's maybe a T-case to get rid of Q-Track <-TOW RIG
revelc is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Thread Tools






Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.