A few questions of longtime Chevy/GMC IFS 4wd owners.
There is a rash of comments about chevy/gmc ifs front differentials being weak and even blowing apart when used for anything other than on road. There are many ifs diffs that are used in various models of chevy/gmc my questions are for owners of 3/4-1 ton units K2500/3500, however, other lighter duty truck owners should chime in too. These questions revolve around owner failures not some I've read stories, seen on another site, heard or whatever.
Describe your truck, tires, gears and power-train, pictures would be nice.
Any problems w/front ifs differential blowing up when you are off road, or?
If so, what were the circumstances encountered when the front ifs diff blew apart?
If you converted to a solid axle setup was the decision based on your knowledge or someone else telling you your front ifs differential is weak, or?
My K2500 IFS 4wd front differential has an ARB air locker and I've never had issues with anything breaking under all conditions.
I suspect the blown chevy/gmc ifs 4wd differential stories are more myth than fact!
Last edited by FellowTraveler; 04-27-2012 at 09:31 PM.
1999 GMC K2500 BURBAN, NAVISTAR enhanced 6.5 td aftercooled, dual alt's, PSC p/s pump w/HD cooler, redundant FSD's, HEATH program, turbine/downpipe wrapped, 4" SS exhaust, real time OBD2 data logging w/device controller, EVANS waterless coolant @ zero (0) psi & 135 gpm pump, 4L80e w/kevlar and premium steel w/cryo treated input/output shafts running @ 100 deg. F & 140 deg F towing, all synthetic fluids, AMSOIL bypass system, MileMarker hydro, dual fuel tanks, and on and on, questions PM me.