Changing front differential

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

jrmax88

TYF Newbie
Joined
Jun 9, 2021
Posts
2
Reaction score
0
Need help. Changing front differential to 3.73 to match rear. Couldn't locate a 3.42 anywhere. Anyway, issue now is the differential i pulled out of same donor vehicle doesn’t have 2 2 wire plugs only actuator plug. Looking all over internet i either find just an actuator plug or a differential with a 4 or 5 wire white plug along with the 2 wire actuator plug. Do i have the unicorn of tahoes? 1st Couldn't find a 3.42 rear now i cant find a 3.73 front differential w 2 2 wire plugs. My question is, CAN I SWITCH THE TUBES?
 

wjburken

Supporting Member
Joined
Dec 26, 2017
Posts
9,986
Reaction score
27,669
Location
Eastern Iowa
Need help. Changing front differential to 3.73 to match rear. Couldn't locate a 3.42 anywhere. Anyway, issue now is the differential i pulled out of same donor vehicle doesn’t have 2 2 wire plugs only actuator plug. Looking all over internet i either find just an actuator plug or a differential with a 4 or 5 wire white plug along with the 2 wire actuator plug. Do i have the unicorn of tahoes? 1st Couldn't find a 3.42 rear now i cant find a 3.73 front differential w 2 2 wire plugs. My question is, CAN I SWITCH THE TUBES?
What year is your vehicle? What year was the donor vehicle?

Did your donor vehicle have push button 4WD select or floor shift 4WD select? What does your vehicle have?

I do believe you can swap out the actuator, but have never done it myself.
 
Last edited:

Eman85

Full Access Member
Joined
Apr 18, 2021
Posts
462
Reaction score
685
Frt. diff. should have wiring for an actuator and an indicator for actuator position. From memory all of the actuators are the same. Give us the year and possibly some pics.
 

Forum statistics

Threads
132,455
Posts
1,868,534
Members
97,157
Latest member
RedneckLimo88

Latest posts

Top