IFS Gear Install Help

[bullfrogjohnson]

I did a gear swap about 2 years ago on my truck. Last pull of the season I had something come apart in the front end. Tore it down last night and here is what I found.

Looks like the ring gear was deflecting away from the pinion and I lost some teeth. Or my weld broke and a piece of metal got in between the gears and caused the damage.

Needless to say I need to rebuild everything, but didnt know if there were any smart gear guys on hear that could help out. I dont think I had the side bearing preload tight enough and these ifs chunks are a pain to setup anyway.

 

[ZeroGravity58]

I'm no expert but I've delt a lot with the 7.5 10 bolts. Everytime I seen pinion deflection in them it took off the whole tooth not just the edge. Seems to me like something got pulled up into it.

 

[jlawles2]

Did you find any pieces of strange material in the case other than the teeth?

Looks like something got between the teeth and a hard part snapping the corners off. If it were Pinion deflection or carrier deflection, I would guess that it would break the top of the teeth were contact is made.

 

[Mike_S]

Im betting that a piece of your lincoln (miller?) locker cracked loose and caused some havoc. Never been a fan of that method, spools are alot cheaper than what this could cost ya.

 

[bullfrogjohnson]

Im betting that a piece of your lincoln (miller?) locker cracked loose and caused some havoc. Never been a fan of that method, spools are alot cheaper than what this could cost ya.

Find me a spool for a 9.25 ifs and I will buy it. Elockers are half ass at best and I can grenade the front end a couple times for what an arb and compressor will cost me.

 

[bullfrogjohnson]

Did you find any pieces of strange material in the case other than the teeth?

Looks like something got between the teeth and a hard part snapping the corners off. If it were Pinion deflection or carrier deflection, I would guess that it would break the top of the teeth were contact is made.

Nothing in the diff except the ring gear teeth. The more I look at it and the more research I do it looks like I set it up wrong.

 

[Chevy1925]

pics of the pinion? looks like the accel side was set too high up the teeth from what pattern i can see on the good teeth though its hard to tell for sure.

Travis, why didnt you weld the spiders together as well?

 

[ecc_33]

x2, I would have made multiple passes on the spiders as well as around the spiders and case. Make sure to crank up the heat for plenty of penatration.

 

[770JOHNNYW]

I still think its just a fender flare:roflmao:

 

[Sledheadxp800r]

Pinion depth?