DaveJ33P

Interesting, I'm fairly certain they will only fit one way on my son's '88 Comanche. I was surprised because I've never paid attention to pad placement on any of my other Mopars. Are they always inside/outside dependant and I've never noticed?

I'm experimenting with R152a in my '99 Cherokee. I got the idea from here: http://www.rx7club.com/2nd-generation-specific-1986-1992-17/c-charging-easy-cheap-safe-alternative-refrigerant-964688/ I discovered my compressor is bad, so I don't have a definitive apprasial yet.

Here is some more information for anyone that cares to chime in. This first pictures shows the mounting brackets for the Delco CS121 61Amp alternator that is installed on our '88 MJ 2.5L no a/c pickup. You can see there is no adjustment that would allow something larger to be installed. These next two pictures are of the original alternator and the '96 Buick Roadmaster that fits Benjy_26's 87 2.5L no a/c truck. On-line research says the '96 Buick Roadmaster's alternator is a CS144, (144mm diameter frame) My calls to the local alternator rebuilder says both the '87 and '88 MJ should use the same alternator. That agrees with Autozone and Napa counter jockeys that tell me its a Delco CS121, (121mm diameter frame) There is also a CS130, (130mm diameter frame) that is supposedly as common as field mice in GM cars. The ear hole to ear hole spacing on my CS121 is 6.170" which agrees with info I found on-line. The ear hole to ear hole spacing on the CS144 is 7.200" Some websites say the CS130 is the same as the CS144, but many more say it's 6.600" Most pictures of the CS130 are with the ears not directly opposing each other but offset. Perhaps these offset ears match the dimension of the CS121? (of course then I'd need a longer serpentine belt) Does anybody have dimensional information?

I know that this is an old thread, but maybe someone will notice it and respond. I bought a '96 Buick Roadmaster 140 Amp alternator based on this thread and another I found here on the forums. It is WAY too big to fit into the stock mounting brackets. The distance between the mounting bolts is over an inch longer than my 61 Amp stock alternator on my '88 2.5L. How do you guys get it to work, What am I missing?