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Print in friendly format Send this term to a friend  Grand Sport
RPO Z16.

A one year special. 1000 were made to honor both the end of the C4 and the original racers, called Grand Sports, from 1963.

All were...
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Jeb Burnett of Deep Freeze Cryo screwed me over pretty bad

Subject: Jeb Burnett of Deep Freeze Cryo screwed me over pretty bad
by Josh on 2008/10/16 23:22:48

I wasn't going to say or post anything about this, but the problems I've been experiencing are something I don't want other people to go through so I'll share.

About 1.5 years ago I had Jeb Burnett of www.deepfreezecryo.com do some work to the independent rear end in my car. He custom built a spool for me, installed 4.09 gears, replaced a bent half shaft, replaced a broken outer stub axle, and cryo treated the entire thing; housing and all.

I recently broke the teeth off the ring gear of his 4.09 gear set. I was billed for a cryo treated set of Richmond gears, imagine my surprise to find Dana gears in the case.

The failure was caused by a bolt falling out of the spool. In order for the spool to hold the inner stub axles in place, 2 small holes were drilled into the stub axles. Corresponding holes were drilled and tapped into the spool. Special bolts with non-threaded tips are then threaded into the spool, and the blunt end of the bolt sticks down into the axle holding it in place.

One of those bolts fell out, and found its way into the ring gear. That bolt ran up between the ring and pinion, and broke teeth off both.

The other bolt was loose, only hand tight, but it had not yet fallen out.

As my machinist continued to disassemble the rear end, the reason the bolt fell out was discovered. The small hole that was drilled into the passenger side inner stub axle had a broken off drill bit in it. That prevented the use of one of the special bolts with the smooth tip, instead a normal bolt was installed.

We were also surprised to find 'DANA' on the gear set, as I was billed for a Richmond set of gears.

Once the stub axles, carrier, and ring gear were removed we flipped the third member up and removed the pinion nut. The pinion literally fell out of the third member and hit the ground. That made sense to me, since we removed the nut, but it concerned my machinist because most of the rear ends he does require at least light taps with a hammer to remove the pinion.

The pinion is much smaller than the stock 3.45 pinion. 27 splines as compared to the 29 spline stocker. This creates a situation where the pinion is too small to fill the hole in the third member, so the solution Jeb used was to slide a piece of pipe over the pinion and tack weld it in place. The three tack welds were broken, and the pinion had turned slightly in the piece of pipe.

To sum up:

Dana instead of Richmond gears
Broken drill bit in the stub axle
Pipe welded to pinion

I've heard such good things about Jeb, and I supported him for a long time on the other forum, but I can't let this level of shoddiness pass.

Jeb will not return my messages or answer the phone, and his E-mail address no longer works.

As it stands today, the only thing he touched from a year and a half ago that hasn't failed in one manner or another is the case itself.
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