4x4 engagement [Expired Topic]

**carlos** · 11-13-2006, 02:44 AM

does anybody know how the front diff on a 94 chevy suburban 6.5 turbo diesel engages ie. electric, vacumm, or mechanical. right now the 4x4 wont engage on my burb and the light wont come on even for low range

**84fiero123** · 11-13-2006, 06:58 AM

electric, i beleive

**GrimReaper** · 11-13-2006, 06:07 PM

Thermal electric actuator....its a Piece of junk and prone to failure. I think the dealer gets something like $150 for it. I believe its available now at parts stores like Auto zone, Advance, Napa. There are cable conversion available as well.

**carlos** · 11-15-2006, 01:39 AM

were might this cable conversion be available?

**AndyD** · 11-15-2006, 07:02 PM

Do the 3/4 ton burbs with the transfer case selector on the floor with the manual shifter lever on them have the same actuator as the push-button 4wd systems?

**unplugged** · 12-08-2006, 07:47 PM

I have a 93 burb and a shop quoted me $300+ for the parts and conversion kit to the GM retrofit. I got the OE pn from the chevy dealer and called NAPA. They had the original electro/thermal actuator and with my AAA discount it was $79. Swapped it out in 20 minutes. I figure if the original lasted 200k miles, I could afford to change it every couple of years myself. 4wd working fine.

**Aeropagus** · 12-09-2006, 07:27 AM

Carlos, any progress on this problem?

**carlos** · 01-01-2007, 10:54 PM

ohya i made progress just went out and bought the posi-lok cable operated mechanism to engage the front diff. Canada www.4x4posi-lok.ca or USA www.4x4posi-lok.com i havent installed it yet but it should make a huge difference