BX axle code?

[COPO]

I don't think the date spread would be too unusual for an uncommon rear end such as a 4.88. I recall the 67 BM Chevelle that I owned had an 11-18-66 build date for the rear and the car had an 06B of 1967 build date, so that would be a 7 month spread (4.56 with metallic drum brakes) and I am 100% certain it was original to the car as documented on the POP and plus other physical evidence.

[ss427copo]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: COPO</div><div class="ubbcode-body">I don't think the date spread would be too unusual for an uncommon rear end such as a 4.88. I recall the 67 BM Chevelle that I owned had an 11-18-66 build date for the rear and the car had an 06B of 1967 build date, so that would be a 7 month spread (4.56 with metallic drum brakes) and I am 100% certain it was original to the car as documented on the POP and plus other physical evidence. </div></div>

Two owners to date...Bob ordered it this way in '68. I'm just the caretaker since 74. It has never been apart........except for me busting the ring gear one late Saturday night up shifting into 2nd at 7400. (it was late and the neighbor was pissing me off about me adjusting the valves and carb with the headers

[bwag]

Looks like I'm showing up late to the party . Spring break and away from the computer .I should be able to clear up the rear end mystery .Lets go back to the summer of 69,we were having trouble getting the car to launch consistently,so we were at Milan dragway on a Saturday trying different methods. Well after the third launch neutral starting I shattered the origional rear end,it had a 4.56 gear from the factory,the ring and pinion ,left axle and housing were destroyed on the launch.We winched the car back on the hauler and went back to the shop. Seeing that only the right axle was salvageable we pulled the assembly out. The parts dept had a warranty axle assembly with a 4.88 posi laying on the floor . We had it installed in the car and back at the strip on Sunday morning with No Neutral Start written on the dash!So the rear end in the car is not the origional .

[P.J.]

Hey Bob
I am sure you would of seen my 68 black on black converted to a 427
racing at the track.the orig owner Barry of the camaro often raced at Milan
every weekend???????????
Peter

[P.J.]

\


Did you get GM to pay for it???
PJ

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bwag</div><div class="ubbcode-body">Looks like I'm showing up late to the party . Spring break and away from the computer .I should be able to clear up the rear end mystery .Lets go back to the summer of 69,we were having trouble getting the car to launch consistently,so we were at Milan dragway on a Saturday trying different methods. Well after the third launch neutral starting I shattered the origional rear end,it had a 4.56 gear from the factory,the ring and pinion ,left axle and housing were destroyed on the launch.We winched the car back on the hauler and went back to the shop. Seeing that only the right axle was salvageable we pulled the assembly out. The parts dept had a warranty axle assembly with a 4.88 posi laying on the floor . We had it installed in the car and back at the strip on Sunday morning with No Neutral Start written on the dash!So the rear end in the car is not the origional . </div></div>

[bwag]

Its funny that you ask, but yes most of the racing damage was repaired under warranty claims .My friend Tom C. was the Corvette and Hiper specialist and when work was slow the race fleet was in one of his stalls.We drove the service manager crazy,he was not a race fan and didnt have any sense of humor .We were talking this morning about some of the stuff we pushed thru on a claim ticket.

[L78M22Rag]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bwag</div><div class="ubbcode-body">Looks like I'm showing up late to the party . Spring break and away from the computer .I should be able to clear up the rear end mystery .Lets go back to the summer of 69,we were having trouble getting the car to launch consistently,so we were at Milan dragway on a Saturday trying different methods. Well after the third launch neutral starting I shattered the origional rear end,it had a 4.56 gear from the factory,the ring and pinion ,left axle and housing were destroyed on the launch.We winched the car back on the hauler and went back to the shop. Seeing that only the right axle was salvageable we pulled the assembly out. The parts dept had a warranty axle assembly with a 4.88 posi laying on the floor . We had it installed in the car and back at the strip on Sunday morning with No Neutral Start written on the dash!So the rear end in the car is not the origional . </div></div>

I guess that probably answers my question too. Thanks, and sorry for chiming in on your thread.

[70 copo]

What a great car-cannot wait to see it in person [img]<<GRAEMLIN_URL>>/burnout.gif[/img] ..

[ss427copo]

Isn't it great I can go right to the source for validation and accuracy? Thanks Bob!

[bwag]

Jeff , Did you notice the date code on your broken pinion gear June 69 ? We had 4.56,4.88,5.13 and 5.38 gears in and out of the car over the years . The 4.88s seemed to be the best combo overall.Some of the gearsets we used were the hi impact gears.Your car would have been a COPO order to get the 4.56 gears from the fsctory....Bob