how to do a t-case doubler
03-06-2008, 03:50 AM
#1
Registered User
Thread Starter
iTrader: (1)
Join Date: Sep 2007
Location: goshen ,ind
Posts: 652
Likes: 0
Received 0 Likes
on
0 Posts
how to do a t-case doubler
before the flaming starts, i'd like to say thanks for the advice. now with that said ... i've got a 93 s-15 jimmy that i am going to put toyota axles under later this year, but i want to know how hard ,and what is involved in doing a t-case doubler, i have the case from a 83 truck & an 86 4runner, can i put those together & make a doubler ? if so how hard is this mod ? i'll be putting this set up behind the gm trans. thanks again for the advice...
03-06-2008, 04:12 AM
#2
I would check out marlincrawler.com. with all the work you are going to do putting toy axles under a gmc, it seems like other than the adapter (dunno where you are going to find one, maybe advance adapters) to connect the transfer case to the gmc transmission it should be straightforward.
You can get the double transfer case adapter from Marlin, Advance Adapters, Trail Gear and Inchworm..those are the ones off the top of my head.
Trail gear has a good video: http://trail-gear.com/dualcase.html
You can get the double transfer case adapter from Marlin, Advance Adapters, Trail Gear and Inchworm..those are the ones off the top of my head.
Trail gear has a good video: http://trail-gear.com/dualcase.html
03-06-2008, 06:33 AM
#3
Contributing Member
^^ x2
Also, it's best to have 2 4CYL gear drive cases and slapping a 4.7 gear in the rear case. You are probably going to want to run 23 spline shafts throughout, assuming your GM motor is one with more grunt than the standard '86 Toyota mill.
Marlin is doing some stuff for the V6 chain driven cases for another option.
Also, it's best to have 2 4CYL gear drive cases and slapping a 4.7 gear in the rear case. You are probably going to want to run 23 spline shafts throughout, assuming your GM motor is one with more grunt than the standard '86 Toyota mill.
Marlin is doing some stuff for the V6 chain driven cases for another option.
03-06-2008, 08:15 AM
#4
Contributing Member
Everything you need to know:
http://www.marlincrawler.com/htm/tra...ickup_dual.htm
http://www.marlincrawler.com/htm/tra...ickup_dual.htm
03-06-2008, 06:17 PM
#5
Registered User
Join Date: Oct 2007
Location: Kingman AZ
Posts: 1,125
Likes: 0
Received 0 Likes
on
0 Posts
get the trans adaptor from marlin and find 2 top shift gear driven t-cases from a 85to88 4cyl truck or 4runner and get the adaptor to join them from inchworm gear
03-07-2008, 06:38 PM
#7
Contributing Member
Why buy 1 part from Marlin and the rest from Inchworm? Seems silly to me, and costs more in shipping...
http://www.inchwormgear.com/store/
http://www.inchwormgear.com/store/
Trending Topics
03-07-2008, 08:44 PM
#8
Registered User
Join Date: Oct 2007
Location: Kingman AZ
Posts: 1,125
Likes: 0
Received 0 Likes
on
0 Posts
the website is www.inchwormgear.com cause inchworm gets the products faster to you than marlin and the owner answers the phone
03-07-2008, 08:49 PM
#9
Contributing Member
I've called Marlin in the mornings this last week twice, and gotten my products within 3-4 business days. CA to CO. Answered in just a minute or two.
Last edited by AxleIke; 03-07-2008 at 08:51 PM.
03-11-2008, 11:05 AM
#10
Registered User
Thread Starter
iTrader: (1)
Join Date: Sep 2007
Location: goshen ,ind
Posts: 652
Likes: 0
Received 0 Likes
on
0 Posts
cool thanks for the info !!! i'll look into it. 
btw i've got a 4.3 vortec mill w/the 700r-4 trans. so it should be fun,fun,fun !!!!
btw i've got a 4.3 vortec mill w/the 700r-4 trans. so it should be fun,fun,fun !!!!
Last edited by toyotaman11; 03-11-2008 at 11:15 AM.
Thread
Thread Starter
Forum
Replies
Last Post
priest16
84-85 Trucks & 4Runners (Build-Up Section)
15
08-06-2015 07:43 AM
