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73-87 Chevy _ GMC Trucks => 4 Wheel Drives => Transfer Cases and Front Drivelines => Topic started by: dc7432 on February 07, 2018, 08:07:19 PM

Title: 87 Chevy slips out of 4x4
Post by: dc7432 on February 07, 2018, 08:07:19 PM
I have a 87 Chevy 4x4 and it pops out of 4x4 I have to hold the shifter to keep it I 4x4. I adjusted the nuts on the lineage from under the cab should I adjust more or is it an internal adjustment Thanks
Title: Re: 87 Chevy slips out of 4x4
Post by: Irish_Alley on February 09, 2018, 09:06:33 AM
we have to know more about your truck. like what trans and transfer case it has. if its original it should be a 700r4, th400 or sm465 and transfer case could be a 205 or 208
Title: Re: 87 Chevy slips out of 4x4
Post by: dc7432 on February 10, 2018, 11:56:00 AM
It's original T400 w/ 208, thanks again
Title: Re: 87 Chevy slips out of 4x4
Post by: dc7432 on October 14, 2018, 03:52:34 PM
Still have the problem. Does it sounds like an internal problem? I did tighten up the linkage but it didn't fix the slipping, thanks.
Title: Re: 87 Chevy slips out of 4x4
Post by: VileZambonie on October 14, 2018, 06:22:18 PM
First thing to do is check the mounts, crossmember and linkage. After that check the linkage adjustment. If it's still popping out, replace the unit. You can pick up a 208 dirt cheap still which is less than a rebuild.
Title: Re: 87 Chevy slips out of 4x4
Post by: dc7432 on October 15, 2018, 04:46:48 PM
I check and everything is fine. Are 208s the same for v10, v20 and v30 in the same year. Spline count the same. Thanks
Title: Re: 87 Chevy slips out of 4x4
Post by: Irish_Alley on October 15, 2018, 06:12:59 PM
the 208s are really going to depend on what trans theyre behind. 700r4 will have a 27 spline input shaft while a th400 will have a 32 as well as a sm465