I took my truck to the track second run I her a boom got a vibration followed by a fire (yup great day) so i put my truck on the trailer and never even looked at it......

today I peeked under it and well the tail shaft housing cracked and slid back about an inch, this was not on take off it was mid tack truck ran a 13.3 if any one wanted to know lol

what are some of the things that can cause it to crack? 87 R10 2wd 700R4

 

1. Too much power
2. Unbalanced drive shaft
3. Case structural fatigue
4. Bad luck

 

Sounds like it Exploded...

Usually when they go boom, followed by a vibration and then a fire coupled with the fact you said it moved back about 1 inch would indicate a massive failure.

 

Well I dont think its #1 only made 342rwhp

i'm thinking #2 and #4 then?

drive shaft is rust from sitting in the bed of the truck even though it was in a garage for 5 years well this project was parked........

the slip yoke sticks out about 1 to an 1.5" the part that cracks slick back on the yoke....... it still drive so I hope its savable?

live and learn i guess

 

Could bad engine mounts cause this? If the engine is rotating too much due to bad mounts, but the trans tail housing is fixed to the cross-member with the trans mount, wouldn't this cause excessive stress in the tail housing? The tail housing is relatively thin material, coupled with a small diameter, might make it susceptible to breakage. Or perhaps the trans mount can flex enough to accommodate, or perhaps the trans mount would break first? But I would think if this was the cause that it would have happened on a launch, not mid track.

Any pics of the damage?

 

i dont think that was the case here on my 700r4 the rear mount is not on the tail housing its just in front of it, My engine mounts have energy suspension bushing so does the trans there still look like new