Will a 91 Chevy z71 4x4 trans work in a 93 z71 4x4 only diff in truck is 93 is Ext cab

The front diff is engaged by vacuum. It is common for the vacuum line to get old and crack. There should be an actuator on the passenger fender-well that operates the front diff. Check the line going to the actuator and the line going to the diff.

If you don't use the 4wd all summer it will freeze up and usually by continuing to engage it .It will eventually get into 4lo try it 2 or 3 times in a day

depends on the year of the trans and the cross member to the trans will move forward some may have to drill new holes.

95 to 98

1. No it will not work

in 1991 chevy used 3 differant trasmission's a 4L60-E, 4L80-E and a 700R4 in 1993 they used 2 differant transmissions a 4L60-E and a 4L80-E if your truck has the 700R4 then the 93 transmissions will not work if you ned to find out what you have in your truck and what is in the other truck. if they are the same they will swap the only diffance in the ext. cab and reg cab is the drive shaft. but the transmission have to be the same modles a 4L60-E will not replace a 4L80-E and nothing will replace the 700R4...

I have two. A 91 s15 ext cab 5-speed 4x4, 4.3L with a flatbed and 89 s10 ext cab auto 4x4, 4.3L with a box. Make an offer around $500 and thier yours.lol

only if the 93 trans has a tv cable like your 91 does and asuming they are both the same style of trucks long bed etc. or short bed. by tv cable what i me is a trans valve cable shorta like a kickdown cable on your older chevy trucks. if it is an electronic shift transmission and yours isn't its not worth the trouble hope this helps.

Hello, you may want to invest in an aftermarket reprogrammer for pcm. It may help you in the long run.

should bolt on, but check starter bolts w/flywheel