DeTomaso Mailing List: March 98, Message #352
     



From: 	JDeRyke <JDeRyke@aol.com>

Subject: Re:  ZF horror story.....(me thinks)

Date: 	Sun, 8 Mar 1998 00:20:04 +0000



ZF ring gear bolts are well known as being hardened all the way thru and thus

are rather brittle. There is darn little clearance room inside, so if they

back out more than a turn or two, they smack the case & break off. Most POCA

guys pull the stock bolts & replace them with US- made grade 8s that are

drilled & safety-wired in pairs. An easy way to verify busted bolts is to

drain the gear oil- typically, you'll get a couple of bolt heads out of the

bottom with the drain oil. Also typically, the damage is fixable simply by R &

R-ing the bolts without welding up the case gouges (cosmetic damage). Good

luck- almost anything else is mega-bucks. J DeRyke