Download or read book T1 IRS Transaxle Book written by Tim Marshall and published by Lulu.com. This book was released on 2017-01-14 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual is a step by step guide of how to rebuild the IRS transaxles used in 70's beetles. The manual can also be used to rebuild swingaxles, if something else is used to reference the diff. The early swing axles (Pre 66) will benefit from the later variations of the parts used in the IRS transaxles. The gear stack build up is also exactly the same for the bus 3 rib and 5 rib transaxles.