69 POP tranny code? [Archive] - Chevelle Tech

: 69 POP tranny code?


Don_Lightfoot
Jan 26th, 05, 8:54 AM
A fellow enthusiast has asked me to find out what transmission came on this car. The Protect-O-Plate shows as follows:

59AR22

Thanks in advance.

DaleM
Jan 26th, 05, 5:02 PM
Looks like TH400. Should be 69 (year), "A" is engine code (either 255hp 350 or 265hp 396 according to GM P&A Catalog info), and R22 should be three numbers instead of a letter and 2 numbers. The three numbers are the build day starting counting from January 1, 1968; i.e. 322 would be the 322nd day of 1968 or Nov 17th since 1968 was a leap year. Something like 522 would be in 1969; 522-366=156 or June 5.

See http://www.chevellestuff.com/tech/69-71_pop_decoding.htm for POP info from my GM P&A Catalog.

Don_Lightfoot
Jan 26th, 05, 7:57 PM
The characters made no sense to me either, that's why I threw it in here.

I will send him the link to your above site. Thanks Dale graemlins/thumbsup.gif