Okay I have searched but didnt find the exact info I was looking for. The alternators on our trucks now (I have an 04 D Cab PreRunner) what amp are they rated at? and the MR2 alt we can swap in, I have heard of doing that, is it a direct bolt in? is the pulley different, and therefore needs smaller/larger belts? And what amp is it rated at? Thanks for any info.

 

I know it works fairly easily on my 3.0, but I don't know about the 3.4

I think the stock alternator is about 60-70 amps.

 

You might check this out:

https://www.yotatech.com/forums/show...+gm+alternator

 

Thanks a ton!!

 

According to Checker auto's web site, the replacement alts for your model are 80amp. Which MR2 are you talking about? There is a 1.8 liter Spyder for 1999 and newer that is 80 amp also. There are mid 90's 2.0 and 2.2 liter engines (I looked at a 1994 listing and forget now which engine) that had 70, 80, and 90 amp rated parts. If you really want juice, that GM swap sounds like the way to go.

 

The 2nd Gen turbo'ed alt. with electric power steering pump. I'm not sure if it's a bolt on or not, but I've answered the first question at least.