ccarmen

I have a 97 Blazer 4 wheel drive with over 100,000 miles. Every time I put it in reverse I hear a loud clinking noise.
Can anyone help?
Thanks

ZL1power69

is that the only time you hear the noise/clunk? could just be a bad u-joint.

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2000 Chevy Blazer ZR2
Performance: AEM intake, TB mod, ported stock y-pipe w/precat deleted, 3in catco cat, 2.5in Flowmaster 40 DF,
March pulleys, MSD SF ignition, Taylor 8.2 wires, Transgo shift kit, Corvette servos, B&M trans cooler.
Suspension: Knaffle 1.5in lift shackles, 1.25in rear wheel spacers, 31in BFG AT's
Exterior: custom ZR2 decals, bug guard, vent visors
Interior: Lanzar headunit w/ ipod input, Pioneer speakers, Scanguage II

http://www.cardomain.com/ride/3013891

muddog321

Or the rear diff has play in it as many GMs do. Also check the diff 80w-90 gear oil, 2 plugs so remove top one and should feel it with finger full. If never changed good time to do it. Same with front diff, xfer case, and hope the trans was done too!

DRGREENTHUMB1001

Are your emergency brakes in good order? I dont know if the 97 has the same set-up as a 98, but mine were shot and were rattling off the rotors, it was always more noticable when backing-up though. Might be worth checkin into if all else leads to a dead end.