No Suburbans have ever been made with the Alison tranny. Sorry it won't fit in the center tunnel without the body lift that the HD trucks use. I have read a few posts somewhere with posters mentioning aftermarket conversions but it would be very pricey. ...
I have had many cars and trucks with both. I have never had either break, and I have had many cars well over 100k miles and decades old. I have never had to replace or had a problem with a chain. I have replaced many timing belts some to the tune of 300 bucks. Yes, timing ...