3rd member question

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Author Message   Bill Bettridge (Billb) Dweb Lounge Member Username: Billb Post Number: 1500 Registered: 02-2002 Posted on Thursday, February 19, 2004 - 10:41 am:    This may be a stupid question but are 3rd members from P38A RR's and D1/RRC's interchangeable? Also - I am assuming that P38A and D2 thirds are the same (?) Thanks, Bill   Alan Bates (Alanb) Senior Member Username: Alanb Post Number: 474 Registered: 07-2002 Posted on Thursday, February 19, 2004 - 10:49 am:    I talked to Bill at GBR some weeks ago when I ordered a DS for my P38 and he had mentioned that the diffs in the P38 are different than the DII and that LR was using the P38 diffs in the current Defenders. I think he said that the P38 diffs are stronger because of the number of pins? As you can tell, I'm no expert on the subject. Give Bill a call, I'm sure he can tell you.   Geoff 93 RRC (Geoff) Senior Member Username: Geoff Post Number: 259 Registered: 11-2002 Posted on Thursday, February 19, 2004 - 02:04 pm:    From what I've seen there are "2-pin" and "4-pin" versions, 4-pin being stronger.   Bill Bettridge (Billb) Dweb Lounge Member Username: Billb Post Number: 1502 Registered: 02-2002 Posted on Thursday, February 19, 2004 - 02:58 pm:    I'm really asking about the third member - not the diff. ie: will they all bolt up into each others respective housings or not. Thanks, Bill   Ron Beckett (Ron_beckett) New Member Username: Ron_beckett Post Number: 19 Registered: 01-2004 Posted on Friday, February 20, 2004 - 03:52 am:    What is this third member that you American chappies talk about? Ron   Ron Beckett (Ron_beckett) New Member Username: Ron_beckett Post Number: 20 Registered: 01-2004 Posted on Friday, February 20, 2004 - 03:56 am:    Re the 2-pin and 4-pin diffs, the P38A used 4-pin on rear axle with a 2-pin on the front until the front also gained traction control like the rear. The diffcase itself is different, the nose is shorter than the classic diff. Current model Defenders use the same diff on the rear instead of the earlier Salisbur diff. I just had mine on the P38A rebuilt after breaking the crownwheel teeth. Ron   Perrone Ford (Perroneford) Member Username: Perroneford Post Number: 234 Registered: 02-2003 Posted on Saturday, February 21, 2004 - 01:29 am:    It will not bolt up. I've had one mistakenly sent to me. I don't know about the second question. -P   Steve Cooper (Scrover) Senior Member Username: Scrover Post Number: 707 Registered: 09-2002 Posted on Saturday, February 21, 2004 - 01:49 am:    "What is this third member that you American chappies talk about?" I had the same question when I first heard the expression - not so long ago. It's not in fact anything to do with kinky sex, and refers to the complete differential housing assembly that bolts off (or on) the axle casing. SC   Bill Bettridge (Billb) Dweb Lounge Member Username: Billb Post Number: 1515 Registered: 02-2002 Posted on Saturday, February 21, 2004 - 01:15 pm:    Thanks all - question answered! Bill   Andrew Parker (P38memate) New Member Username: P38memate Post Number: 31 Registered: 12-2003 Posted on Wednesday, February 25, 2004 - 11:05 pm:    Hey if your looking to put in an ARB locker in the P38A you need RD57's They work in both the Traction Controlled (TC) rear and the earlier non TC fronts as well. Bill at GBR is stocking these ready for shipment with 4.1:1 Ring and pinions if your up for some more large tire leverage.