4bt Conversion in Jeep TJ w/ auto transmission - Competition Diesel.Com

MelStar · 08-16-2017, 06:57 PM

I have a 97 Jeep TJ with an automatic transmission. I found a 4bt that came out of a box truck and it has an Allison automatic transmission bolted to it. I was wondering if anybody has advice on an automatic transmission option that will work and allow me to keep the jeep 4wd? I am having trouble finding an automatic transmission and transfer case that will work in such a short wheelbase.

joefarmer · 08-17-2017, 11:21 AM

I would think a dodge style auto could be made to work. What if you did a SYE on the rear and clocked the transfer case for the front shaft? (disclaimer, I'm not well-versed in Jeep stuff)

CorneliusRox · 08-17-2017, 11:51 AM

4r100 is pretty small.

08-16-2017, 06:57 PM	#1
MelStar Name: MelStar Title: Rookie Status: Not Here Join Date: Aug 2017 Member`s Gallery Posts: 3	4bt Conversion in Jeep TJ w/ auto transmission I have a 97 Jeep TJ with an automatic transmission. I found a 4bt that came out of a box truck and it has an Allison automatic transmission bolted to it. I was wondering if anybody has advice on an automatic transmission option that will work and allow me to keep the jeep 4wd? I am having trouble finding an automatic transmission and transfer case that will work in such a short wheelbase.

08-17-2017, 11:21 AM	#2
joefarmer Name: joefarmer Title: MR. Supreme Overlord Status: Not Here Join Date: Jul 2006 Location: ohio Member`s Gallery Posts: 6,137	I would think a dodge style auto could be made to work. What if you did a SYE on the rear and clocked the transfer case for the front shaft? (disclaimer, I'm not well-versed in Jeep stuff) __________________ brandon'); DROP TABLE Users;-- 1948 Dodge 1.5t 12v RH swap \| 99 F250 12v RE test rkt \| 11 X5 'no soup' \| 08 F250 CR RE swap \| 05 2500 CR 68 standalone firepunk.com

08-17-2017, 11:51 AM	#3
CorneliusRox Name: CorneliusRox Title: Seasoned Rookie Status: Not Here Join Date: Dec 2012 Location: Detroit, MI Member`s Gallery Posts: 4,154	4r100 is pretty small. __________________ Corey - BSME '21 Tesla Model 3 Perf '22 DMax AT4 2500