Question: Transmission

[redb2k's]

Were the automatic Callaways built by GM with an automatic or a standard transmission? I thought all of the Callaways were built with a standard and then Callaway installed the automatic with overdrive. Does anyone know any details?

 

[*89x2*]

The rule I have seen with automatics, is they have an MXO code for the auto box from BG.


That said, one has a B2K w/ an 4+3 rpo in 88 and it has the Callaway automatic.

I have been trying to get the NCRS to reconsider their position however, since they saw (and maybe judged) the 88 auto that began life as a 4+3 car first, guess what they are believing more...

 

[John H. Christensen]

IF YOU HAD YOUR CAR'S BUILD SHEET FROM GM, WOULD THAT TELL YOU IF YOUR CAR WAS ORIGINALLY AN AUTO OR STANDARD?

 

[c4c5specialist]

Hi there,
Also, the SPI or service parts identification label would give you an MD8 code which is the 700R4/4L60 transmission.
Allthebest, c4c5

 

[redb2k's]

The reason I asked was due to the differential option. I would of thought all would of started with a standard to get the larger Dana 44 differntial.

 

[*89x2*]

The reason I asked was due to the differential option. I would of thought all would of started with a standard to get the larger Dana 44 differntial.

...that was the same logic the NCRS reps. tried to use. It was/is not accurate though - but I understand why one might think that :cool

 

[C-4 Now]

The Callaways automatics that I looked at so far were original automatics with Dana 36. This surprised me knowing the torque numbers for these cars! I haven't heard of any problems but not many Callaways are drag raced on a regular basis!!

 

[*89x2*]

The Callaways automatics that I looked at so far were original automatics with Dana 36. This surprised me knowing the torque numbers for these cars! I haven't heard of any problems but not many Callaways are drag raced on a regular basis!!

The ones from Barrett-Jackson in 2004 were D36 automatics, remember???

Maybe one or two were converted from a 4+3, but that can be more work than starting with an automatic from the get-go

 

[redb2k's]

The Callaways automatics that I looked at so far were original automatics with Dana 36. This surprised me knowing the torque numbers for these cars! I haven't heard of any problems but not many Callaways are drag raced on a regular basis!!

I understand the automatic was completely different, 700a4 compared to the turbo 400 with overdrive after the transmission. I was just wondering about the differential. I would like to of had the Dana 44 if I was purchasing an automatic.

 

[calcisco]

The stock automatic was a TH400 (not HD). They were built by John Kilgore in California. John still maintains a transmission and off road equipment business. Modifications included blocking the vacuum modulator and locking the centrifugal modulator. Clutch packs were heavy duty. The torque converter was from a Chevy Vega, which is smaller diameter to clear the relocated starter motor.

 

[c4c5specialist]

HI there,
Fact is that the Dana 36 is about as bulletproof a differential as you can get.
Personally, I have a customer I did a 406 in a 1988 with a 4L60 and about 475 ft lbs of torque that is run regularly at Englishtown running low 12s with No problems in 3 years of running.
Allthebst, c4c5

 

[TurboLuigi]

See the attached for the answers you seek!...

-Luigi
:cool

 

[kerry08]

transmission

I just picked up my 08 callaway with 6sp manual chevy builds the car with 6sp manual or auto w/paddle shift but the bigger 3:42 rear ratio is only available with the z51 & manual optioncallaway gets the car with trans.installed

 

[callaway4fun]

Kerry they were referring to the Twin turbo cars not the present cars

 

[redb2k's]

Thanks Luigi, That answers the question-Automatics have the Dana 36.