Quote:
Originally Posted by Ski-me
Interesting!
Did some looking and your RPO code "GQ1" means the standard axle ratio given the engine/tranny/and federal or CA for that year. So, not really easy to tell unless you take the cover off.
Looking at this chart (pdf) and your tranny (MX1), looks like 4.10.... page 6.
https://www.gmheritagecenter.com/doc...t-Suburban.pdf |
I've got that same PDF saved on my phone, I'm pretty sure I am running the 4.10's with my Turbo 400 (I believe it's an NP208 T-case as well). I'd assume I've also got the same ratio in my front axle as well? That may be a dumb question but I'm not 100% sure. (Still learning)