Chirping from engine area 1981 Auto in reverse under load

[FactoryC3]

I noted a high pitch chirping from the engine area when auto trans is in reverse. No noise until I put it under load. No noise in neutral of forward gears. Any ideas?:hnoes

 

[bill81vette]

check your belts,make sure they are tight

 

[Antz81]

I would guess a problem in the trans.
The engine runs the same no matter what gear you are in; so if the problem was in the engine the it should be replicated in all gears.

 

[Wajulia]

I have owned my 81 for over 30 years and it has always "squealed" when driven in reverse. I have heard others describe the same thing. Hasn't bothered anything else in all these years, so I just consider it one of the many little idiosyncrasies of the beast